Cook, B. (2009) “Will increasing levels of trade in health services thwart the delivery of health equity in Thailand”, Journal of Business, Innovation and Sustainability (JBIS), 4(1), น. 59–70. available at: https://so02.tci-thaijo.org/index.php/BECJournal/article/view/54046 (สืบค้น: 29 สิงหาคม 2026).