B. Abubakar, S. B. Shamaki, A. Dantani, Z. Y. Gada, M. A. Gupa
DOI:
10.9734/jsrr/2019/v25i1-230173
Page: 1-9
Ahmadu Adamu Galadima, Tahir Aja Zarma, Maruf A. Aminu
DOI:
10.9734/jsrr/2019/v25i1-230175
Page: 1-10
Y üksel Soykan
DOI:
10.9734/jsrr/2019/v25i1-230177
Page: 1-18
M. Onwuka, C. P. Ononugbo, G. O. Avwiri
DOI:
10.9734/jsrr/2019/v25i1-230178
Page: 1-12
V. J. Aimikhe, O. E. Eyankware
DOI:
10.9734/jsrr/2019/v25i1-230176
Page: 1-21