Intraskul, S., and Somboonsuk, B. “ASEAN economic community: opportunity and feasibilities of thailand’s rubber industry investment”. International Journal of Agricultural Technology 12, no. 4 (July 15, 2016): 579–589. accessed August 16, 2025. https://li04.tci-thaijo.org/index.php/IJAT/article/view/6646.