Classic Spline Functions for Approximate Solution of System of Non-Linear Volterra Integral Equations of the Second Kind. TU J. Nat. Appl. Sci. [Internet]. 2023 Jan. 28 [cited 2026 Apr. 24];5(1):121-33. Available from: https://journal.tu.edu.ye/index.php/TUJNAS/article/view/1314