Author: Kānprachum Patibatkān Radap Phūmiphāk rư̄ang Kānčhatkān Thīdin læ Sapphayākō̜n yāng Yangyư̄n khō̜ng Chonphao Phư̄nmư̄ang bon Phư̄nthī Sūng nai ʻĒchīa (2003 Chiang Mai, Thailand)