Melati, Puput, et al. “ The Effect of Giving Cabbage Litter on Population Growth of the African Night Crawder Earthworm (Eudrilus Eugeniae)”. Jurnal Pijar Mipa, vol. 18, no. 6, Nov. 2023, pp. 918-22, doi:10.29303/jpm.v18i6.5860.