Boonpha, Siriphon, Tharin Rasanond, Kosol Meekhun, and Nara Somprasong. 2020. “Administrative Model for The Development of Sufficiency for Junior High School Students under Bangkok Metropolitan Administration”. Journal of Chandrakasemsarn 26 (1):131-48. https://li01.tci-thaijo.org/index.php/crujournal/article/view/201851.