Sara Askar, Mahmoud Anees, Amal Elbendary, Abdelrahman Kobtan
DOI:
10.9734/ijtdh/2021/v42i630461
Page: 1-7
Eze, Chinwe Nwadiuto, Owhoeli Ovutor, Olasunkanmi, Rukayat Motunrayo
DOI:
10.9734/ijtdh/2021/v42i630462
Page: 8-16
Victoria Klutse, Samuel Addo Akwetey, Priscilla Abena Ankamaa Opare, Godwin Kwakye-Nuako
DOI:
10.9734/ijtdh/2021/v42i630463
Page: 17-26
Ali Johnson Onoja, Felix Olaniyi Sanni, Simon Peterside Akogu, Paul Olaiya Abiodun, Sheila Iye Onoja, Samuel Ayorinde Lemah
DOI:
10.9734/ijtdh/2021/v42i630464
Page: 27-36
Thiery Ndong Mba, Cédric Sima Obiang, Otogo N'Nang Elvis, Landry Eric Mombo, Mireille Andeme Ompana, Ulrich Kevin Ivala Zogo, Judicaël Obame Nkogué, Louis-Clément Obame Engonga, Joseph Privat Ondo, Cyrille Bisseye, Patrick Mickala
DOI:
10.9734/ijtdh/2021/v42i630465
Page: 37-45
N. P. Okoye, D. N. Onwusulu, C. P. Nnamani
DOI:
10.9734/ijtdh/2021/v42i630471
Page: 46-57