Kareem, A., Oshungade, I. and Oyeyemi, G. (2016) “An Improvement on Some Approximate Solutions to Dalenius Equation”, Al-Hikmah Journal of Pure and Applied Sciences (AJPAS), 2(2), pp. 130–142. Available at: https://alhikmahuniversity.edu.ng/AJPAS/index.php/journal/article/view/145 (Accessed: 4 July 2026).