Samappito, J. “Manufacture and Properties of Purple Waxy Corn Yogurt and its Application in Probiotic Salad Dressing Production”. Food and Applied Bioscience Journal, vol. 9, no. 1, Apr. 2021, pp. 11-27, https://li01.tci-thaijo.org/index.php/fabjournal/article/view/240060.