nelpon murah pake internet text Jakarta Kawan Pustaka 2007 Cet. 1 ind vi, 78 hlm 24 Cm Ahmad Yani ; editor Adiek Kurniawan VOIP 979-757-193-9 20100302115411.0 JAKPU-03100000018377 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)