Adeyemi S. O, Ogunlaran OM, Adebisi A. I. Numerical Solution of Volterra Integral Equation and its Error Estimates Via Spectral Method. ASRJETS-Journal. 2017;30(1):47-56. Accessed October 29, 2025. https://asrjetsjournal.org/American_Scientific_Journal/article/view/2507