“Correlation Between Egg Production Performance of Sikumbang Jonti Ducks as a Selection Method in Smallholder FarmsCorrelation Between Egg Production Performance of Sikumbang Jonti Ducks as a Selection Method in Smallholder Farms” (2025) Jurnal Sain Peternakan Indonesia, 20(1), pp. 40–46. doi: 10.31186/jspi.id.20.1.40-46.