Parichatnon1, S., K. Maichum, and A. Wongchai. “Revealed Comparative Advantage of Rubber Exports between Thailand, Indonesia and Malaysia”. Business Administration and Management Journal Review, vol. 12, no. 2, Dec. 2020, pp. 113-26, https://so01.tci-thaijo.org/index.php/bahcuojs/article/view/151695.