Miracle Cristia Meyfi Bambulu, et al. “Assessment of Antioxidant Activity of Ethanol Extract from Callyspongia Arizusa Obtained from Parentek Beach, Minahasa Regency”. PHARMACON, vol. 13, no. 3, Oct. 2024, pp. 738-44, doi:10.35799/pha.13.2024.55265.