Yuyen, Kotchanipha, and Sarawut Nabnean. “Performance investigation of a transparent roof forced convection solar drying system for drying Andrographis paniculata”. Bulletin of Applied Sciences 15, no. 1 (June 30, 2026): 36–44. accessed September 2, 2026. https://ph03.tci-thaijo.org/index.php/BAS/article/view/4590.