Manonun, N., S. Boonkum, T. Chaiyaso, and P. Seesuriyachan. “Development of Purple Rice Beverage Product by Corn Malt Enzymes”. Food and Applied Bioscience Journal, vol. 1, no. 3, Feb. 2017, pp. 160-71, https://li01.tci-thaijo.org/index.php/fabjournal/article/view/77387.