Warsidi, Edi text Bekasi Mitra Utama 2008 ind 82 hlm. Edi Warsidi Teknik Perlindungan Lingkungan 628 628 EDI m 978-602-8426-01-5 INLIS000000000001279 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)