Suktanarak, S. ., N. . Kajunsri, S. . . Suwantuppa, and B. . Waiyapoka. “Producing Bubble Dragon Fruit Peel With Pineapple Juice Using Reverse Spherification Technique”. Rajamangala University of Technology Tawan-Ok Research Journal, vol. 14, no. 1, June 2021, pp. 25-31, https://li01.tci-thaijo.org/index.php/researchjournal2rmutto/article/view/248649.