Romyen เ. ., Rattanasupa พ. . ., Kamhang ส. . . ., and Narkphum เ. . . “Marketing Mix Factors Affecting the Decision of Latex Distribution Channels for Rubber Farmers in Nakhon Si Thammarat Province”. SIAM COMMUNICATION REVIEW, vol. 20, no. 1, Apr. 2021, pp. 56-69, https://so05.tci-thaijo.org/index.php/commartsreviewsiamu/article/view/250756.