Kunyanee, Kannika, and Panarat Sungin. 2020. “The Effect of Gur Gum on the Qualities of Gluten Free Crispy Waffle from Sweet Purple Potato Flour”. Dusit Thani College Journal 13 (1):315-29. https://so01.tci-thaijo.org/index.php/journaldtc/article/view/241023.