R. Febrianila, W. P. Lokapirnasari, T. I. Restiadi, I. Mustofa, H. A. Hermadi, and E. Safitri, “Case Study : Dystocia on Beef Cattle in Kunir Regency of Lumajang District, East Java, Indonesia in 2015 and 2016”, KLS, vol. 3, no. 6, pp. 603-608, Dec. 2017.