ketmaneechairat, hathairat, Kwanchai Saeweenan, and Sopida Tuammee. 2025. “Marigold Flower Size Sorting Machine”. Journal of Bansomdej Engineering and Industrial Technology 6 (1). Bangkok, Thailand:33-65. https://ph04.tci-thaijo.org/index.php/JEITB/article/view/8423.