Physical characterization manure of the variation adding earthworms L. lumberus the process VermicompostingVivin Setiani, Vely Kukinul Siswanto, Ayu Nindyapuspa, Ummi Fadilillah Kurniawati and Mutiara Mayang KamilahE3S Web Conf., 332 (2021) 07003DOI: https://doi.org/10.1051/e3sconf/202133207003