مقالة · مجلة · 2021
Chukwudi Paul Obite, D. C. Bartholomew, Ugochinyere Ihuoma Nwosu, Gladys Ezenwanyi Esiaba, Lawrence Chizoba Kiwu
Quarterly Journal of Econometrics Research
اقرأه10.18488/journal.88.2021.71.31.43
كما طُبع: Desmond Chekwube Bartholomew