Kambheera, Abhiwat, and Kiattisak Kumpapan. “SOLUTIONS OF THE DIOPHANTINE EQUATION 15^x+4^y=z^2”. Life Sciences and Environment Journal 21, no. 1 (June 30, 2020): 255–261. Accessed April 20, 2024. https://ph01.tci-thaijo.org/index.php/psru/article/view/240374.