Sansompron, N. ., P. Piyawanitsatian, B. Chaithep, P. . Thong-ngam, M. Sritorn, M. . Ratcharak, W. Wannarak, S. . Thintarua, N. . Kaewjun, and S. Chaiyarak. “Factors Influencing Marketing Mix to Dairy Products Purchase of Coffee Shop Entrepreneurs in Muang District, Surat Thani”. Journal of International Studies, Prince of Songkla University, vol. 10, no. 2, Dec. 2020, pp. 68-93, https://so03.tci-thaijo.org/index.php/jis/article/view/248441.