Syaharuddin ., et al. “Optimization of Extraction and Quality Assessment Based on Physicochemical Properties of Carrageenan from Red Algae (Kappaphycus Alvarezii) Origin of South Sulawesi Indonesia: A Recent Study”. Research Trends and Challenges in Physical Science Vol. 5, Nov. 2021, pp. 92-113, doi:10.9734/bpi/rtcps/v5/8917D.