text Jakarta Akademika Pressindo 1991 Ed.1, cet.1 ind viii, 104 hlm ilus 21 cm E. Zaenal Arifin, Mustakim Bibliografi : hlm. 95-96 Korespondensi bisnis 651.57 20090227023452.0 YOGYA-02090000020870 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)