Ni’matuzahroh, N., Pratiwi, I. A., Surtiningsih, T., Fatimah, F., & Sumarsih, S. (2017). The potency of Micrococcus sp. L II 61 bacteria as oil sludge cleaning agent. Berkala Penelitian Hayati, 22(2), 38-42. https://doi.org/10.23869/56