Karimov, E.T., D.A. Usmonov, and Kh.N. Turdiev. “Nonlocal Problem for Multi-Parametric Integral-Differential Equation”. Bulletin of the Karaganda University. Mathematics Series 123, no. 3 (September 30, 2026): 109–120. Accessed September 30, 2026. https://mts.buketov.edu.kz/mathematics-vestnik/article/view/943.