Amin, Muhamad Iza Dzul Fikar, et al. “Evaluation Of The Performance Of Selfmix Feed-Based Layer Production Using And Not Using Feed Additive In Ponggok Village, Ponggok District, Blitar Regency ”. Jurnal Ternak, vol. 16, no. 1, June 2025, pp. 100-12, doi:10.30736/jt.v16i1.253.