Tesana, S., Semakhun, C., & Inthong, W. (2017). The Development of the Integrated Learning Instructional Model Based on Agriculture to Develop the Agricultural Profession Skill for Up-country Secondary School Students in the Lower-Northern Part of Thailand. Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University, 12(1), 145–162. Retrieved from https://so01.tci-thaijo.org/index.php/GraduatePSRU/article/view/87602