“The influence of nutrition commercial ration on the quality of raced chicken eggs (gallus domesticus) at the laying breeder in North Samarinda” (2022) Jurnal Peternakan Lingkungan Tropis, 5(1). Available at: http://e-journals2.unmul.ac.id/index.php/jpltrop/article/view/5155 (Accessed: 27 August 2026).