Hend Elzefzafy
DOI:
10.9734/jerr/2021/v21i817486
Page: 38-46
Mu Xueyu, Yang Shaojie, Kong Xiangdong
DOI:
10.9734/jerr/2021/v21i817483
Page: 10-15
Afaq Ahmad, Khalil UR Rehman, Fawad Ahmad, Ansar Ahmad, Muhammad Armaghan Siffat
DOI:
10.9734/jerr/2021/v21i817482
Page: 1-9
Ogbebor Daniel, Ugbebor N. John, Momoh O. L. Yusuf, Ndekwu B. Onyedikachukwu
DOI:
10.9734/jerr/2021/v21i817484
Page: 16-29
Aimé Joseph Oyobé Okassa, Colince Welba, Jean Pierre Ngantcha, Pierre Ele
DOI:
10.9734/jerr/2021/v21i817485
Page: 30-37