AZIZ, I., S. U. ISLAM, M. FAYYAZ, and M. AZRAM. “New Algorithms for Numerical Assessment of Nonlinear Integro-Differential Equations of Second-Order Using Haar Wavelets”. Walailak Journal of Science and Technology (WJST), vol. 12, no. 11, July 2014, pp. 995-1007, https://wjst.wu.ac.th/index.php/wjst/article/view/1065.