Marjuki, M., Hartutik, H., Huda, A. N., Oktafiyanti, K., & Phusparini, A. (2025). Utilization of Calcium Sources in the Saponification Process of Lemuru Fish Oil for Protected Fat Supplements. Jurnal Sain Peternakan Indonesia, 20(3), 157–164. https://doi.org/10.31186/jspi.id.20.3.157-164