Pertiwiningrum, A., Susilowati, E., Rochijan, R., Fitriyanto, N. A., Soeherman, Y., & Habibi, M. F. (2017). Potential Test on Utilization of Cow's Rumen Fluid to Increase Biogas Production Rate and Methane Concentration in Biogas.

Pertiwiningrum, Ambar, Endang Susilowati, Rochijan Rochijan, Nanung Agus Fitriyanto, Yudistira Soeherman, و Mochammad Fahmi Habibi. Potential Test On Utilization of Cow's Rumen Fluid to Increase Biogas Production Rate and Methane Concentration in Biogas. 2017.

Pertiwiningrum, Ambar, et al. Potential Test On Utilization of Cow's Rumen Fluid to Increase Biogas Production Rate and Methane Concentration in Biogas. 2017.