na INLIS000000000013617 20150619085636.0 a ||| | 170609| ||| | 978 979 006 492 8 0010-061500000000650 662.6 662.6 SRI b Sri Wahyuni Biogas Energi Alternatif Pengganti BBM, Gas da Listrik cet.1 Jakarta Agromedia 2013 vi, 118 hlm ilus 23 cm Biogas 1864/b/kpad/2015 1865/b/kpad/2015 1866/b/kpad/2015