Phitthayaphinant, P. and Somboonsuke, B. (2012) “An Econometric Model of Oil Palm Plantation Area in Thailand”, Kasetsart Journal of Social Sciences, 33(2), pp. 239–252. available at: https://so04.tci-thaijo.org/index.php/kjss/article/view/246814 (accessed: 28 September 2026).