Cost-efficiency of mastitis control strategies on smallholder dairy farms by A. Fadillah, B.H.P. van den Borne, Y.H. Schukken, O.N. Poetri, H. Hogeveen

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Comparative study of purification methods for influenza-specific IgY from chicken eggs by W. P. Rachmawan, M. E. Saputri, A. Esfandiari, R. D. Soejoedono, O. N. Poetri, B. F. Prasetyo