WIDIASTUTI, H., TANIWIRYONO, D., RUSMANA, I. and WENING PERMATASARI, G. (2021) “Trenching Construction in Peat Soil and the DGGE Analyses of nif Gene and Activity of Dehydrogenase”, Microbiology Indonesia, 14(4), p. 2. doi: 10.5454/mi.14.4.2.