Yongyoot Nilplengsang, and Sumaman Pankham. “STP Plus C Strategy Superior Marketing Strategies for Online Service Businesses”. Kurdish Studies 11, no. 2 (December 8, 2023): 5272–5285. Accessed July 3, 2024. https://kurdishstudies.net/menu-script/index.php/KS/article/view/1087.