Kartika Purnamasari, Andreas Berny Yulianto, and Koesnoto Supranianondo. 2026. “Utilization of BioMC4 Probiotic Supplementation in Livestock Feed As An Effort to Enhance Animal Health and Productivity in Jombang Regency”. Kontribusia : Research Dissemination for Community Development 9 (1):63-68. https://doi.org/10.30587/kontribusia.v9i1.11143.