Chompipat, P., and P. Hadkhuntod. “Development of An Intelligent Classification of Plastic Waste System”. NKRAFA JOURNAL OF SCIENCE AND TECHNOLOGY, vol. 22, no. 2, Apr. 2026, pp. 235-48, https://ph02.tci-thaijo.org/index.php/nkrafa-sct/article/view/261101.