text Yogyakarta Pustaka Book Publisher 2006 Cet.1 ind 288 hlm 21 cm Ashadi Siregar Etika komunikasi 979-99176-3-8 20090227025616.0 YOGYA-02090000039996 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)