Tagwa A. M. Salih, Bashir A. Yousef
DOI:
10.9734/ijtdh/2021/v42i1430515
Page: 26-31
Hilaire Moundounga Kenguele, Barclaye Ngossanga, Thièry Ndong Mba, Angélique Kombila, Cyrille Bisseye
DOI:
10.9734/ijtdh/2021/v42i1430511
Page: 1-7
Awuri Babema-Igonikon, Manuchimso Charles Akaninwor
DOI:
10.9734/ijtdh/2021/v42i1430512
Page: 8-16
Askira M. Umoru, A. B. Samaila, S. M. Panda, M. Y. Iliyasu, U. M. Kadaura, M. A. Umar, H. S Hamafylto, U. A. Bukar, H. U. Wakawa
DOI:
10.9734/ijtdh/2021/v42i1430513
Page: 17-25
Chioma Maureen Obi, Onyekachi Patrick Amakor, Ifeanyi Onyema Oshim, Monique Ugochinyere Okeke, Barbara Ogochukwu Ochiabuto
DOI:
10.9734/ijtdh/2021/v42i1430516
Page: 32-40