Meekoed, N. ., Khanaphaeng, A. ., Promin, C., Ninchun, K. . and Putrit, P. . (2022) “Formula for Finding the Number of Triangles with Integer Side Lengths”, KKU Science Journal, 50(2), pp. 136–145. available at: https://ph01.tci-thaijo.org/index.php/KKUSciJ/article/view/250447 (accessed: 13 April 2025).