Lestari, V. , Rahardja, D. , Rasyid, T. , Asnawi, A. , Saleh, I. , Rasyid, I.. "Beef Cattle Farmers Perception toward Urea Mineral Molasses Block". World Academy of Science, Engineering and Technology, Open Science Index 118, International Journal of Agricultural and Biosystems Engineering, (2016), 10(10), 675 - 678.