Halimfanezi, Larra, and Rusdi Ridho Asra. “A Review: Analysis of Betacyanin Levels in Various Natural Products”. Asian Journal of Pharmaceutical Research and Development 8, no. 5 (October 15, 2020): 88–95. Accessed May 2, 2024. https://www.ajprd.com/index.php/journal/article/view/846.