Santosa, Purnama Edy, and Rudy Sutrisna. “Antibody Titre Avian Influenza and Newcastle Disease in Blood Serum of Growing Ducks Gived Defferent Crude Protein Ration and Vaccinated With Vaksimune NDL AI®”. Jurnal Penelitian Pertanian Terapan 17, no. 1 (April 3, 2017). Accessed November 24, 2024. https://jurnal.polinela.ac.id/jppt/article/view/3.