Haryuni, Nining, et al. “Perbaikan Kualitas Semen Ayam Kampung Melalui Peningkatan Energi Metabolisme Pakan: Improving the Quality of Chicken Semen through Increasing Feed Metabolic Energy”. Journal of Science Nusantara, vol. 2, no. 3, Oct. 2022, pp. 123-9, doi:10.28926/jsnu.v2i3.548.