L, Raimi, Adebakin M. A, and Gabadeen W.O. “Environmental Factors and Survey Research in Developing Countries: Evidence from Nigeria”. Asian Journal of Empirical Research 3, no. 10 (October 24, 2013): 1362–1381. Accessed July 3, 2024. https://archive.aessweb.com/index.php/5004/article/view/3624.