Kokkaew, Hathaigan, Nisakorn Srithanyarat, and Theparit Pitirit. “Optimization of Ingredients Using Response Surface Methodology and Effects of Organic Acids on Phytochemicals and Antioxidant Activities in Extruded Purple Corn Noodle”. Science & Technology Asia 25, no. 2 (June 29, 2020): 97–111. Accessed February 8, 2023. https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/185068.