Pnjelasan Ilmiah tentang peristiwa sehar hari Robert L. Wolker text Jakarta Gramedia Pustaka Utama 2003 cet.4 284 hal : - ; 23 cm Robert L. Wolker 121 121 Rob e 979-22-0291-9 20240227013230 INLIS000000000535316 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)