BARUS, T., A. SUWANTO, A. T. WAHYUDI, and H. WIJAYA. “Role of Bacteria in Tempe Bitter Taste Formation: Microbiological and Molecular Biological Analysis Based on 16S RRNA Gene”. Microbiology Indonesia, vol. 2, no. 1, Mar. 2010, p. 4, doi:10.5454/mi.2.1.4.