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2021 Mar  3.  PENENTUAN BOBOT BADAN SAPI PERANAKAN ONGOLE (PO) JANTAN BERDASARKAN PROFIL BODY CONDITION SCORE (BCS) DI KECAMATAN HAMPARAN PERAK KABUPATEN DELI SERDANG. Scenario (Seminar of Social Sciences Engineering and Humaniora). [Online] :