Sansuk, Jintana, and Sarawut Nabnean. “The study of equilibrium moisture content and mathematical of Andrographis paniculate herb”. Bulletin of Applied Sciences 14, no. 2 (December 9, 2025): 34–43. accessed September 2, 2026. https://ph03.tci-thaijo.org/index.php/BAS/article/view/3854.