Azara, R., Saidi, I. A., Budiandari, R. U., Nurbaya, S. R., Hudi, L., & Sugiarto. (2026). Characteristics of Agar Powder (Gracilaria verrucosa) trough Acid – Base Pre - extraction . Indonesian Journal of Innovation Studies, 25(4), 10.21070/ijins.v25i4.2381. https://doi.org/10.21070/ijins.v25i4.2381