NugrahaParid Ridwan, and Sofyan Zaman. 2019. “Pengendalian Gulma Pada Perkebunan Karet (Hevea Brasiliensis Muell Arg.) Di Gurach Batu Estate, Asahan, Sumatera Utara”. Buletin Agrohorti 7 (2), 215-23. https://doi.org/10.29244/agrob.7.2.215-223.