นิลดำ เสริมศิริ. “A Study of Community Radio Audiences (Public Sector) in Northern Region”. Journal of Management Science Chiangrai Rajabhat University 7, no. 2 (June 5, 2018): 50–86. Accessed May 18, 2024. https://so03.tci-thaijo.org/index.php/jmscrru/article/view/127150.