Sriyot, M., and S. Khongsuk. “The Construction of 20-liter Plastic Water Bottle Cleaner”. Institute of Vocational Education Southern Region 3 Journal (KRIS Journal), vol. 2, no. 2, Dec. 2022, pp. 67-78, https://so08.tci-thaijo.org/index.php/KRIS/article/view/3232.