Tirawanichakul, Supawan, Salinla Chanchiew, and Yutthana Tirawanichakul. 2017. “Pennywort Drying Using Infrared Radiation: Drying Kinetics, Energy Consumption and Quality Aspect”. Asia-Pacific Journal of Science and Technology 18 (2):311-24. https://so01.tci-thaijo.org/index.php/APST/article/view/82850.