Yingyuenyong, K., and N. Thepnuan. “The Development of Application for Learning in Topic of Cell And Cell Structure to Enhancing Student’s Sciencific Skills for Secondary 1 (Grade7) Students”. Mahachula Academic Journal, vol. 8, no. 1, Apr. 2021, pp. 219-31, https://so04.tci-thaijo.org/index.php/JMA/article/view/240329.