Daengsi, T., P. . Ungkap, and P. Wuttidittachotti. “5G Quality of Service: A Case Study of BTS Skytrain Station Areas”. Journal of Digital Communications, vol. 7, no. 1, June 2023, pp. 81-105, https://so04.tci-thaijo.org/index.php/NBTC_Journal/article/view/254248.