Prugsapitak, Supawadee, and Nattaporn Thongngam. “On the Diophantine Equation $x^2 - Kxy + ky^2 + 3^ny = 0, N = 1, 2, 3$”. Thai Journal of Mathematics 22, no. 3 (December 20, 2024): 503–508. Accessed January 15, 2025. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1512.