Hasan, Muhammad Nur, Nining Haryuni, and Lestariningsih Lestariningsih. 2023. “The Effect of Unproductive and Productive Chicken Ratio on the Feasibility of Laying Hens Business”. Jurnal Ternak 14 (2):59-66. https://doi.org/10.30736/jt.v14i2.160.