na INLIS000000000018762 20150706171429 170126||||||||| | ||| |||| || || 979-020-233-4 0010-071500000018762 665.776 665.776 SAI m SAID, Sjahruddin Membuat biogas dari septi tank Jakarta Indocomp 2008 14 hlm. ilus. 24 cm. BIOGAS