คล้ายบวร ภ, พัฒนพงศา น. Development of Highland Environment Curriculum For Students in Chiang Dao and Chaiprakarn District under Chiang Mai Provincial Office of the Non-formal and Informal Education. CSD. Res. J. [Internet]. 2016 Dec. 26 [cited 2024 May 14];17(1):103-19. Available from: https://so05.tci-thaijo.org/index.php/cmruresearch/article/view/214985