Sriklaub, Kanit, Darunee Tippayakulpairoj, Watinee Amornpaisarnloet, Siwachoat Srisuttiyakorn, Nattapol Jaengaksorn, Sakulkarn Waleeittipat, and Aree Imsombat. 2023. “Health Problems that Hinder Student Learning in Chiangrai Pilot Schools: Mixed Methods Research”. Journal of Research Methodology 36 (1). Bangkok, Thailand:63-87. https://so12.tci-thaijo.org/index.php/jrm/article/view/540.