Ngafif, Akhmad. 2020. “Optimization Of Sodium Alginate And Calcium Chloride (Cacl2) As Cross-Linking Agents In Nanoparticles From Ethanolic Extract Of Katuk (Sauropus Androgynus (L.) Merr) Leaves”. Berkala Ilmiah Mahasiswa Farmasi Indonesia (BIMFI) 7 (2), 13-23. https://doi.org/10.48177/bimfi.v7i2.33.