Hamzah, A., Hapsari, R.I. and Priyadarshini, R. 2017. The influence of rice husk and tobacco waste biochars on soil quality. Journal of Degraded and Mining Lands Management. 5, 1 (Oct. 2017), 1001–1007. DOI:https://doi.org/10.15243/jdmlm.2017.051.1001.