Shalangwa, A. A. ., D. . John, M. . Cornelius, I. . Zubairu, and E. . Kessel. “Numerical Solution of Integral Equations Using Homotopy Perturbation Method and Series Solution Method”. BIMA JOURNAL OF SCIENCE AND TECHNOLOGY GOMBE, vol. 9, no. 1A, Mar. 2025, pp. 157-64, doi:10.64290/bima.v9i1A.893.