Gartaula, C. and Karki, D.B. 2013. Optimization of Extraction of Anthocyanins from Roselle (Hibiscus sabdariffa var. sabdariffa) in Aqueous Medium. Journal of Food Science and Technology Nepal. 6, (Jun. 2013), 69–72. DOI:https://doi.org/10.3126/jfstn.v6i0.8263.