Yimer, Seid, Alemayehu Shiferaw, and Solomon Gebregiorgis. 2020. “Block Procedure for Solving Stiff First Order Initial Value Problems Using Chebyshev Polynomials”. Ethiopian Journal of Education and Sciences 15 (2), 33-44. https://ejhs.ju.edu.et/index.php/ejes/article/view/2406.