Membuat bioarang dari kotoran lembu Widarto Suryanta text Yogyakarta Kanisius 2000 Cet. X ind
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60p. : ilus. ; 19cm L. Widarto, Suryanta di Rak Pengolahan, Mesin Widarto Suryanta Bioarang 333.9 333.9 WID m 979-497-485-4 230130 20230130122338 INLIS000000000003058 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)