นิลดำ เสริมศิริ, and รัตนะสิมากูล คมสัน. 2018. “The Diffusion of Philosophy of the Economic Sufficiency in Thai Mass Media, and Understanding and Acceptance of People in Chiang Rai Province*”. Journal of Management Science Chiangrai Rajabhat University 12 (1):1-34. https://so03.tci-thaijo.org/index.php/jmscrru/article/view/119850.