The publishing and editorial teams would like to thank the following, for their invaluable service as 2021 reviewers for this journal. We are very grateful for the contributions made. With their help, the journal has been able to publish such high-quality articles:
 

• ABBAS‬‏, ‪INtESAR
• Abdeen, Tareq
• Abdeldayem, Marwan
• Abdullah, Hasan 
• Abdulmuhsin, Amir
• Abed, Aws
• Abed, Salma
• Aboramadan, Mohammed
• Abu Ghazaleh, Mohamad
• Abubakar, A. Mohammed
• Acosta-Prado, Julio César
• Adekunle, Simon
• ADOBOR, HENRY
• Agarwal, Promila
• Aghaei, Mahdi
• Agnihotri, Arpita
• Agrawal, Amit
• Agrawal, Rakesh
• Ahmad, Azlinzuraini
• Ahmad, Hafiz Imtiaz
• Ahmed, Hamed
• Ahmed, Tariq
• Ajmal, Mian
• Akterujjaman, S. M.
• Al Issa, Hussein-Elhakim
• AL-SHAMMARI, MINWIR
• Alawamleh, Mohammad
• Aldulaimi, Saeed
• Ali, Md. Idris
• Ali, Muhammad
• Alkhwaldi, Abeer
• Allen, Stuart
• Almeida, Fernando
• Alnahedh, Mishari
• Alnoor, Alhamzah
• Alobidyeen, Buthina
• Amoo, Nii
• ANAND, ANJNI
• Anand, Karuna
• Andersén, Jim
• Arias-Pérez, Jose
• Arslan, Ahmad
• Arumugam, Dharmaraj
• Asad, Muhammad Mujtaba 
• Asghar, Muhammad Idrees
• Atshan, Nadia
• Attili, V.S. Prakash
• Azam, Md.
• Azevedo, Renato
• Azizzadeh, Fariba
• Azzopardi, Joseph
• Badri, Siti Khadijah Zainal
• bamel, umesh
• Bantha, Tapas
• Barpanda, Dr. Saswat
• Basar, Ufuk
• BASHIR, BAROOJ
• Benton, Caroline
• bhat, sameer
• Bhattacharya, Saurabh
• BHATTACHARYA, SROMONA 
• Boateng, Akosua
• Boujelbène, Mouna
• BRIGANTI, Paola
• Budhiraja, Sunil
• Burrell, Darrell
• Buzeti, Jernej
• Capps, Charles
• Çetin, Fatih
• çetin, mehmet
• Chaanine, Johnny
• Chahine, Layal
• Chanda, Sasanka Sekhar
• Chhabra, Bindu
• Chowdhury, Anup
• Chumphong, Orisa
• Chun, Daniel
• Cicchiello, Antonella
• Cicek, Berat
• Coelho, Arnaldo
• Colaço, Maria
• Correa, Victor
• Cox, Susie
• Cruz, Jose
• Csath, Magdolna
• D'souza, Chiara 
• Dahleez, Khalid
• Daovisan, Hanvedes
• Das, Sudhir
• Davoine, Eric
• dhir, swati
• Diaz-Villavicencio, Guillermo
• Divett, Megan
• Doe, Frederick
• Donelli, Chiara Carolina
• Douglas, David
• Dutta, Anjali
• Dwivedi, Alka
• Dyondi, Rashmi
• Effendi, Adnan 
• Eid, Riyad
• Elhamalawy, Eissa
• Elhoushy, Sayed
• Elrehail, Hamzah
• Esmaeelinezhad, Osveh
• Esnard, Catherine
• Fahed-Sreih, Josiane
• Farmer, Michele
• Fasih, Syeda Tayyaba
• fatima, zoha
• Fatorachian, Hajar 
• Figueiras, Alberto
• Fitrio, Tomy
• Foroozanfar, Mohammad Hossein
• Fowler, David
• Gadeikienė, Agnė
• Garcés, María
• García-Carbonell, Natalia
• GARGALLO CASTEL, ANA FELICITAS
• Gheitani, Alborz
• Gibney, Raymond
• Goel, Manisha
• Gold, Jeff
• goswami, munmun
• Gotcheva, Nadezhda
• Griffith, Andrew
• Gunesh, Dr. Priya Devi
• Gupta, Akriti
• Gupta, Amit
• GUPTA, ARTI
• Gupta, Bindu
• Gupta, Kanishka
• Gupta, Kanishka
• Gupta, Kiran
• Gupta, Megha 
• Gupta, Minisha
• hailu, aregu
• Halliday, Sallyann
• Han, Garry Tan Wei 
• Harrington, Denis
• Hasan, Ikramul
• Hasanpoor, Edris
• hassan, Mohammad mustafa
• Haubrich, Gislene Feiten
• Hendarsjah, Hidajat
• Hevi, Stewart
• Hiddlestone-Mumford, Jacqueline
• Hoyt, Brian
• Iaia, Lea
• Iannotta, Michela
• Ibidunni, Ayodotun
• Igwe, Paul Agu
• Islam, M. Nazmul
• ISMAIL, HUSSEIN
• Iyer, Radha
• Jabeen, Fauzia
• Jain, Aman
• Jain, Mahima
• JAIN, SARIKA
• Jameel, Alaa S.
• Jammulamadaka, Nimruji
• Jancenelle, Vivien
• Jena, Lalatendu
• Jha, Rimjhim
• Jones, Brian
• Jones, Ollie
• Jyoti, Jeevan
• Kantabutra, Sooksan
• Karani, Anushree
• Kassa, Afework
• Kaur, Devinder
• Kesting, Peter
• Khang, Dr. Alex
• khurana, khushbu
• Kirkhaug, Rudi
• Kivipold, Kurmet
• Konstantoulaki, Kleopatra
• kooli, chokri
• Kostopoulos, Ioannis
• Koutoupis, Andreas
• Krajcsák, Zoltán
• Kroumova, Maya
• Krylov, Valery
• Kulshreshtha, Kushagra
• KUMAR MANGLA, SACHIN
• Kumar, Dharmendra
• Kumar, Mukesh
• Kumar, Pradeep
• Kunamaneni, Suneel
• Kurtzberg, Terri
• Kyriakidou, Niki
• Lacap, Jean Paolo
• Ladelsky, Limor
• Lanza, Gianluca
• Lata, Kusum
• Lee, Hyung-Woo
• Liang, Feng
• Lilly, Juliana
• Liu, Lili
• Livian, Yves
• lodorfos, George
• Lopes La Falce, Jefferson
• Lopes, Sílvia
• Lukito-Budi, Andy Susilo
• Lyu, Hongbo
• M. Rusdi, Zainnur
• Maamari, Bassem
• Mafabi, Samuel
• Magrizos, Solon
• maheshwari, nidhi
• Masa'deh, Ra'ed
• Matthews, Brian
• McCulloch, Alistair
• Medeiros, Igor
• Melo, Newton
• Mendiratta, Aparna
• MERT, Ibrahim 
• Metwally, abdelmoneim
• Milone, Michele
• Mitchell, Ben
• Mohammed, Adam Andani
• Moore, Neil
• Morin, Gabriel
• Mostafa, Bassant
• Mu'ani, Lu'ay
• Muragan, P
• Mutha, Prapti
• Napathorn, Chaturong
• Naqshbandi, M Muzamil
• Nguyen-Lisovich, Mai
• Nutsugah, Francis
• Obeidat, Ahmad
• Oiry, Ewan
• Okoro, Henrietta
• Omanwar, Sunil
• Osta, Alfred
• Ouakouak, Mohammed
• Pal, Abhinav
• Palumbo, Rocco
• Panchal, Jasmin
• Panda, Tapan
• Parray, Zahoor Ahmad 
• Pathak, Deepti
• Pattnaik, laxmiprada
• Pautt-Torres, Geli Mercedes
• Pratici, Lorenzo
• Queiroga, Fabiana
• Rai, Gaurav
• Raj, Razaq
• Rajapakshe, Wasantha
• Rampasso, Izabela Simon
• Rana, Geeta
• Rana, Shikha
• Rehman, Shafique
• Repousiss, Spyros
• Richardson, Neil
• Rizomyliotis, Ioannis
• Rodriguez, Jenny
• Rosati, Pieranglo
• Rožman, Maja
• Ruzibuka, John
• S.V.D., Nageswara Rao
• SACHDEVA, SHIKHA
• Sahney, Sangeeta
• Saini, Aarti 
• Sapra, Jayashree
• Sarma, Sushanta 
• Segaro, Ethiopia Legesse
• SEN, Cem
• Sengar, Ruby
• Shahid, Sehrish
• Shalom, Tamar
• Sharma, Jyoti
• Sharma, Naman
• Sharma, Sanjeev
• Shet, Sateesh
• Shrivastava, Navin
• Shubita, Moade
• Shukla, Mahendra
• Shukre, Anagha
• Sia, Surendra
• Sihag, priyanka
• Silva, Deoclécio Junior 
• Šindelář, Jiří
• Singh, Anupama
• Singh, Pooja
• Singh, Poonam
• Singhal, Surabhi
• Smith, Simon
• Soderberg, Andrew
• Soni, Monika
• Sposato, Martin
• Srivastava, Praveen
• Stifanich, Ljubica
• Takao, Yoshiaki
• Tarhini, Ali
• Taskin, Nazim
• Tedone, Archana
• Teh, Choon Jin
• Tiwari, Mansi
• Tomar, Nishant 
• Topic, Martina
• Trem, Karen
• Tripathi, Aastha
• Tripathi, Swati
• TUTAR, Hasan
• VALERI, Marco
• Valk, Reimara
• Vanhala, David
• Varma, Deepkumar
• Vasconcelos, Anselmo
• Verma, Pratima
• Vispute, Swati
• Volkova, Natalia
• Winton, Bradley
• Won, Doyeon
• Wu, Junjie
• Yadav, Dr. Radha
• YASUDA, Shin
• Zangrandi, Antonello
• Zeidan, Firas
• Zeshan, Muhammad