Phitthayaphinant, P., and P. Satsue. “Oil palm farmers’ adaptation practices to take part in ASEAN Economic Community (AEC) creation: Implications for traditional oil palm zones in southern Thailand”. Kasetsart Journal of Social Sciences, vol. 39, no. 3, Dec. 2018, pp. 801-16, https://so04.tci-thaijo.org/index.php/kjss/article/view/242607.