A Theoretical Analysis of Simpson’s 1/3-Type Scheme for the Riemann-Stieltjes Integral Based on Geometric Mean Derivative . Sindh. Uni. Res. J. SS [Internet]. 2025 Jul. 25 [cited 2026 Oct. 19];57(1):1-13. Available from: https://sujo.usindh.edu.pk/index.php/SURJ/article/view/7711