PEMBANGUNAN RORAK DAN APLIKASI TANKOS DI AREAL PERKEBUNAN KARET (THE STUDY OF SILT PITS ESTABLISHMENT AND EMPTY FRUIT BUNCH APPLICATION IN RUBBER PLANTATION). (2017). Inovasi, 14(2), 155-161. https://jurnal.sumutprov.go.id/index.php/inovasi/article/view/101