Ngaemngam, S., Thangpreecharparnich, N. ., Muankhaw, T. ., Tubtongdee, S. ., Toomkaew, K. . and Phuin, P. . . (2021) “Prepaid Electric Energy Consumption System via Online Top-Up System and a Notification Through LINE Application ”, Journal of Engineering, RMUTT, 19(2), pp. 43–52. Available at: https://ph01.tci-thaijo.org/index.php/jermutt/article/view/244438 (Accessed: 1 May 2024).