O. Adeyemi S., O. M. Ogunlaran, and I. Adebisi A., “Numerical Solution of Volterra Integral Equation and its Error Estimates Via Spectral Method”, ASRJETS-Journal, vol. 30, no. 1, pp. 47–56, Apr. 2017, Accessed: Oct. 29, 2025. [Online]. Available: https://asrjetsjournal.org/American_Scientific_Journal/article/view/2507