Sebayang, H.T., Yamika, W.S.D. and Mulyani, L.K. 2018. The effect of weeding with two kinds of fertilizers on sweet potato (Ipomoea batatas L.) growth and yield. Journal of Degraded and Mining Lands Management. 6, 1 (Sep. 2018), 1539–1544. DOI:https://doi.org/10.15243/jdmlm.2018.061.1539.