“Aktivitas Antibakteri Sabun Organik Berbasis Ekstrak Kopi Robusta (Coffea Canephora) Terhadap Escherichia Coli ATCC 8739”. 2026. Jurnal Ilmiah BioSmart (JIBS) 12 (1): 17-26. https://doi.org/10.30872/jibs.v12i1.6592.