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:
- Abdul Ghafar, Maszura
- Abrishami, Sepehr
- Acheampong, Alex
- Adekunle, Timothy
- Adeyina, Damiloju
- Aghamohammadi, Nasrin
- Aghili, Nasim
- Agirbas, Asli
- Agyekum, Kofi
- Aigwi, Itohan Esther
- Akanmu, Abiola
- Akhavian, Reza
- Al-Obaidi, Karam
- Alani, Yasir
- Albeaino, Gilles
- Albers, Vivian
- Alhusban, Mohamad
- Alias, Aidi
- Alias, Nor Azlina
- Almashaqbeh, Mohammad
- Amini, Reza
- Anderson, Tim
- Angjeliu, Grigor
- Ankomah, Emmanuel
- Appel-Meulenbroek, Rianne
- Aryal, Ashrant
- Asadi, Ramin
- Asadi, Somayeh
- Atasoy, Guzide
- Ayarkwa, Joshua
- Aycam, Idil
- Azzazy, Sameh
- Banihashemi, Saeed
- Bassey, Daniel
- Berardi, Umberto
- Birkeland, Janis
- Brauner, Marcela
- Burgess, Andrew
- Calderon, Franz
- Calis, Gulben
- Carmichael, David
- Chawynski, Greg
- Chua, David
- Cronemberger, Joara
- Dahlan, Dalilah
- Danfulani, Babangida
- Dikmen, Irem
- Dixit, Manish
- Doan, Dat
- Dritsa, Dimitra
- Du Toit, Jacques
- Dudhee, Vishak
- Eiris, Ricardo
- Elghaish, Faris
- Emuze, Fidelis
- Ergen, Esin
- Ezcan, Volkan
- Fadli, Fodil
- Farahzadi, Leila
- Faris, Hazhar
- Galderisi, Adriana
- Ganah, Abdulkadir
- Getuli, Vito
- Ghari Neiat, Azadeh
- Ghodrati, Nariman
- Goh, Kaichen
- Golizadeh, Hamed
- Gudlaugsson, Bjarnhedinn
- Hajirasouli, Aso
- Ham, Youngjib
- Hamidavi, Tofigh
- Hashemi, Arman
- Hassan, Norhaslina
- Hassanpour, Badiossadat
- Hayat, Ezri
- Hosseini, M. Reza
- Ibrahim, Rahinah
- Ismail, Zul-Atfi
- Jaganathan, Siva
- Johansen, Karsten
- Jones, Delwyn
- Kashfi, Mehdi
- Kayaçetin, Nuri Cihan
- Khatibi, Hamed
- Kolo, Shaba
- Koohestani, Kayvan
- Kundakci Koyunbaba, Basak
- Lam, Patrick
- Li, Da
- Lopez-De-Rego, Almudena
- Love, James
- Mahdiyar, Amir
- Mahmoudi, Elham
- Mangkuto, Rizki A.
- Marks, Stefan
- Masood, Rehan
- Mat Noor, Mohd Sallehuddin
- Matarneh, Sandra
- Menassa, Carol
- Mohandes, Saeed Reza
- Mohd Yusof, Mohd Johari
- Najaf, Erfan
- Nath, Nipun
- Nikmehr, Bahareh
- Noorzai, Esmatullah
- Nwadigo, Okechukwu
- Nworgu, Tobechukwu
- Ogunseiju, Omobolanle
- Okakpu, Anthony
- Oliver, Stephen
- Omrany, Hossein
- Opoku, Alex
- Oyetunji, Abiodun
- Ozbek, Mehmet Egemen
- Ozbil Torun, Ayse
- Özener, Ozan Önder
- Ozuduru, Burcu
- Pereira, Luisa Dias
- Pilehchi Ha, Peiman
- Premier, Alessandro
- Purushothaman, Mahesh Babu
- Qazi, Abroon
- Rashidi, Ali
- Rehman, Attiq Ur
- Renukappa, Suresh
- Resendiz, Carla
- Rezvani, Sherina
- Rothimi, Funmi
- Rotimi, James
- Saad, Syed
- Saldana Ochoa, Karla
- Salgin, Burcu
- Samarasinghe, Don
- Sanchez, Carmen
- Seo, Joonoh
- Seyedzadeh, Saleh
- Shari, Zalina
- Sheikhkhoshkar, Moslem
- Shirazi, Arezoo
- Shuchi, Sarah
- Sivashanmugam, Subarna
- Sridharan, N.
- Suresh, Subashini
- Tang, Pingbo
- Tanyer, Ali Murat
- Tereci, Ayşegül
- Tortorella, Guilherme
- Touceda, Maruxa
- Valitabar, Mahdi
- Vambol, Viola
- Vickers, Paul
- Wahab, Akeem
- Wen, Qing-Jie
- Windapo, Abimbola
- Wuni, Ibrahim Yahaya
- Yazdani, Maziar
- Yu, Fu-Wing
- Zavvari, Azam
- Zeinalian Bafandeh, Atefeh