AUDU, AMINU, AYUBA SANDA, and AMINU ABUBAKAR. 2021. “SPLINE INTERPOLATION METHOD OF SOLVING SINGULARLY PERTURBED BOUNDARY VALUE PROBLEM USING POLYNOMIAL AND NONPOLYNOMIAL SPLINES WITH ERROR COMPARISON”. BIMA JOURNAL OF SCIENCE AND TECHNOLOGY (2536-6041) 5 (01):60-70. http://journals.gjbeacademia.com/index.php/bimajst/article/view/265.