boonmee, poramate (2022) “Numeric Factors Affecting the Premium Mobile Numbers’ Auction Result: Thailand Case Study”, Journal of Digital Communications. Bangkok, Thailand, 6(1), pp. 149–174. available at: https://so04.tci-thaijo.org/index.php/NBTC_Journal/article/view/260594 (accessed: 8 December 2025).