Wongprasit, Nawasanan, Jamnean Joungtrakul, and Katsunori Kaneko. 2013. “The ‘Boat Model’: A New Leadership Competency Model for Private Hospital Directors in Thailand”. HRD Journal 3 (2). Chonburi, Thailand:57-67. https://so01.tci-thaijo.org/index.php/HRDJ/article/view/11327.