Nasathit, N., S. Sala-ngam, L. Terzieva, and C. Photong. “Low-Cost Herb Dryer using Infrared Lamps with Circulating Hot Air Blowers: doi: 10.14456/mijet.2023.5”. Engineering Access, vol. 9, no. 1, Oct. 2022, pp. 47-55, https://ph02.tci-thaijo.org/index.php/mijet/article/view/247165.