Kongthong, T., Mahathanaseth, I., & Anussornnitisarn, P. (2019). The Impact of the investment in 3G/4G mobile broadband system to general public and economic development of Thailand. Journal of Digital Communications, 3(1), 258–279. retrieved from https://so04.tci-thaijo.org/index.php/NBTC_Journal/article/view/179046