Kosmakova, M.T., D.M. Akhmanova, Zh.M. Tuleutaeva, and L.Zh. Kasymova. 2019. “Solving a Nonhomogeneous Integral Equation With the Variable Lower Limit”. Bulletin of the Karaganda University. Mathematics Series 96 (4):52-57. https://doi.org/10.31489/2019m4/52-57.