Tran, Ai Lan, Ngoc Hoa Phan, and Le Dieu Hien Pham. 2015. “Extraction of Anthocyanin from Roselle (Hibiscus Sabdariffa L.) and Its Utilization As Colourants for Gummy Candy”. Dong Thap University Journal of Science, no. 17 (December):72-78. https://doi.org/10.52714/dthu.17.12.2015.296.