na INLIS000000000000257 20190925045149 0010-0919000075 7. Productivity And Chemical Composition Of Several Mulberry Species (Morus spp) Agains Spacing Plant, and Cutting Age Rijanto Hutasoit, Simon Ginting, Juniar Sirait, Andi Tarigan The International Journal of Tropical Veterinary and Biomedical Research, 2016/5/1