Sangkham, Sarawut, and Chaiwat Sangsrichan. “Solid Waste Characterization and Recycling Potential in University of Phayao, Northern Thailand”. Asian Health, Science and Technology Reports 28, no. 4 (June 11, 2020): 1–12. accessed August 30, 2026. https://ph03.tci-thaijo.org/index.php/ahstr/article/view/1363.