Pratiwi, Nurul, et al. “PUP PUMP: PROCESSING OF HUMAN FECES AS A ALTERNATIVE BIOENERGY POWER PLANT ZERO WASTE ”. International Journal of Ethnoscience, Bio-Informatic, Innovation, Invention and Techno-Science, vol. 1, no. 1, Jan. 2022, doi:10.54482/ijebiiits.v1i1.4.