Rashidi Othman, Nur Alifah Md Amin, Ainaa Eliah Abu Bakar, Nurrulhidayah Ahmad Fadzillah, and Noraini Mahmad. “Carotenoid Pigments of Red, Green and Brown Macroalgae Species As Potential Active Pharmaceutical Ingredients”. Journal of Pharmacy and Nutrition Sciences, vol. 9, no. 1, Jan. 2019, pp. 14-19, doi:10.29169/1927-5951.2019.09.01.3.