Wisma, D. S.; Purwadi, P.; Wulandari, E. C. ANALISIS PENDAPATAN USAHA TERNAK KAMBING KONTES DI PETERNAKAN NRJ FARM BOYOLALI TAHUN 2019–2021: ANALYSIS OF INCOME FROM CONTEST GOAT FARMING AT NRJ FARM BOYOLALI IN 2019–2021. tas 2026, 8, 19-24.