Pathan, M. A., Mohannad Shahwan, and Maged Gumman Bin-Saad. “Hypergeometric Type Extended Bivariate Zeta Function”. Tamkang Journal of Mathematics 55, no. 1 (February 1, 2024): 79–95. Accessed July 27, 2024. https://journals.math.tku.edu.tw/index.php/TKJM/article/view/5120.