Lertkittikul, Jitralada, and Nantachai Kantanantha. “Packaging waste reduction by design of experiments”. Asia-Pacific Journal of Science and Technology 19, no. 6 (April 13, 2017): 886–890. accessed April 22, 2026. https://so01.tci-thaijo.org/index.php/APST/article/view/83072.