Indra Dwipa, Syafri Karmaini, Irfan Suliansyah
DOI:
10.9734/arja/2020/v12i330083
Page: 9-16
S. I. Mensah, C. Ekeke, M. Udom
DOI:
10.9734/arja/2020/v12i330084
Page: 17-22
K. M. V. Sachitra
DOI:
10.9734/arja/2020/v12i330085
Page: 23-38
Unekwu Onuche, Tijani Abdulhamid Ahmed, Ojomugbokenyode Ebenehi
DOI:
10.9734/arja/2020/v12i330086
Page: 39-46