Romyen , Jasada, Panida Rattanasupa, Supattra Kamhang, and Yenjit Narkphum. “Marketing Mix Factors Affecting the Decision of Latex Distribution Channels for Rubber Farmers in Nakhon Si Thammarat Province”. Siam Communication Review 20, no. 1 (April 19, 2021): 56–69. accessed April 26, 2025. https://so05.tci-thaijo.org/index.php/commartsreviewsiamu/article/view/250756.