Akkapin, S., C. Kaewniam, B. Detdamrongpreecha, W. Madpongtua, T. Thanarakwattanakul, and D. Seedanoy. “MEASUREMENT OF EFFICIENCY AND EFFECTIVENESS OF THAILAND LOW-COST AIRLINE MANAGEMENT USING MARKETING-MIX (7PS) THEORY”. RMUTK Journal of Liberal Arts, vol. 4, no. 1, May 2022, pp. 13-28, https://so02.tci-thaijo.org/index.php/larts-journal/article/view/247439.