na INLIS000000000001912 20150327140858.0 SBPUHAT ind. [22] 665.776 665.776 ADI b H.R. Adia Biogas sumber energi / H.R.Adia Boenz Enterprise, vi, 58 hlm. : illus. ; 21 cm. hlm. 58 Teknologi Biogas SBPUHAT