Sangprasert, N., K. Inthavisas, K. Wattanakul, and N. Noorit. “Development of a Low-Cost Reverse Vending Machine for Clear Plastic Bottles and Aluminum Cans”. Science, Engineering and Health Studies, vol. 17, Sept. 2023, p. 23040001, https://li01.tci-thaijo.org/index.php/sehs/article/view/260720.