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-Rahaman, Awal
- Aggio, Carlos
- Ajwang, Fredrick
- Akber, Nusrat
- Alwang, Jeffrey
- Amadu, Festus O.
- Arumugam, Nalini
- Awasthi, Maya Kant
- Awotide, Bola
- Babu, Suresh
- Bairagi, Subir
- Bannor, Richard
- Barkley, Andrew
- Beyer, Richard
- Bhuyan, Sanjib
- Birthal, Pratap Singh
- Bitsch, Linda
- Cariola, Lucía
- Chang, Kuo-I
- Chaudhry, Muhammad
- Chen, Po-Chi
- Cherotich, Josephine
- Chung, Yessica Cy
- Cooper, Gregory
- Cruz, Maria Elena
- D'souza, Alwin
- Danso, Albert
- Deb, Limon
- Degoma, Aschalew
- Demont, Matty
- Deoranto, Panji
- Devkota, Satis
- Dey, Kushankur
- Dong, Dzung
- Donkor, Emmanuel
- Duong, Linh
- Durevall, Dick
- Figueiredo Junior, Hugo
- Fuller, Katherine
- Gava, Oriana
- Gill, Amarjit
- Goetz, Renan
- Gomez, Miguel I.
- Gonzalez, Andrea
- Grabs, Janina
- Gunasekera, Don
- Gunawan, Endro
- Guntukula, Raju
- Helmsing, Bert
- Ho, Shuay-Tsyr
- Hoang, Hoa
- Huang, Wen-Chi
- Imran, Muhammad
- Inegbedion, Henry
- Jaureguiberry, Florencia
- Kamaruddin, Norfaryanti
- Kannan, Elumalai
- Kenny, Ursula
- Khanal, Aditya
- Korbee, Dorien
- Kumar, Anjani
- Kumar, Shalander
- Kumar, Vimal
- Lachman, Jeremias
- Le-Anh, Tuan
- Lees, Nic
- Lim, Evelyn Ai Lin
- Lopez, Andres
- Luo, Lianfa
- Ma, Wanglin
- Maitra, Debasish
- Mariyono, Joko
- Mayorga, Joaquin
- Medase, Kehinde
- Medin, Hege
- Mellon-Bedi:, Shaibu
- Mensah, Amos
- Milesi, Darío
- Minde, Isaac
- Minten, Bart
- Morales, Cesar
- Mottaleb, Khondoker
- Naik, Gopal
- Najib, Mukhamad
- Nakelse, Tebila
- Narayanan, Sudha
- Nayak, Chittaranjan
- Negi, Digvijay
- Nguyen, Dung
- Nguyen, Thanh Binh
- Odongo, Walter
- Ohlan, Ramphul
- Padakandla, Steven Raj
- Padula, Antônio
- Pallegedara, Asankha
- Palomino, Walter
- Paltasingh, Kirtti
- Pandey, Ghanshyam
- Parappurathu, Shinoj
- Paredes-Belmar, Germán
- Parida , Jajati
- Pavloudi, Alexandra
- Pereyra, Martín
- Perez, Luis
- Pham, Thanh
- Prasada, Pahan
- Praveen, Bushra
- Ranjan, Ram
- Rauniyar, Sourav
- Regmi, Madhav
- Rezitis, Anthony
- Routroy, Srikanta
- Ruben, Ruerd
- Sahito, Jam Ghulam Murtaza
- Saroj, Sunil
- Saxena, Raka
- Sergaki, Panagiota
- Sha, Wenbiao
- Shahzad, Muhammad Abid
- Sharma, Janpriy
- Shimokawa, Satoru
- Signorini, Guilherme
- Sitienei, Isaac
- Steenkamp, Ermie
- Stubrin, Lilia
- Sutradhar, Rajib
- Tacsir, Ezequiel
- Tappata, Mariano
- Thapa, Ganesh
- Triboulet, Pierre
- Tripathi, Amarnath
- Tripathi, Gaurav
- Trivedi, Shantanu
- Valdez Lafarga, Octavio
- Varshney, Deepak
- Vemireddy, Vidya
- Verre, Vladimiro
- Villacis, Alexis
- Vinholis, Marcela
- Vishnu, Kedar
- Wahid, Muhamad Azhari
- Watanabe, Eluiza
- Yang, Feng-An
- Yang, Wei
- Yang, Xin
- Yu, Xiaohua
- Yuni, Dennis Nfor
- Zabsonre, Agnes
- Zereyesus, Yacob
- Zhang, Jian
- Zheng, Hongyun
- Zou, Baoling