Omar Mutab Alsalami, Ali Muhammad Ali Rushdi
DOI:
10.9734/jerr/2020/v18i217203
Page: 12-29
T. T. Ayanlade, J. A. Adegboyega, A. P. Olalusi
DOI:
10.9734/jerr/2020/v18i217205
Page: 38-49
Nyoti Stephen G. Mugo, D. M. Nyaanga, S. F. Owido, G. O. Owino
DOI:
10.9734/jerr/2020/v18i217206
Page: 50-66
Yerima Bako Djibo Aboubacar, Guero Yadji
DOI:
10.9734/jerr/2020/v18i217202
Page: 1-11
Dessie Gieta Amare, Zigijit Kassa Abebe
DOI:
10.9734/jerr/2020/v18i217204
Page: 30-37