Nugraini, Z. R., L. D. Mahfudz, and S. Kismiati. “Effects of Altitude Differences on the Performance of Broiler Chicken Kept in Closed House Cage”. Jurnal Sain Peternakan Indonesia, vol. 17, no. 1, Mar. 2022, pp. 51-54, doi:10.31186/jspi.id.17.1.51-54.