Energi dan Permasalahannya Delik Iskandar text Surabaya CV Graha Ilmu Mulia 2010 - iv, 52 hlm. : ilus. ; 25 cm. Delik Iskandar; Editor, Ina Hasanah Ilmu Bumi 550 550 DEL m 978-979-756-011-9 20190503044237 INLIS000000000001137 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)