apa penyebabnya, bagaimana mengatasinya text Jakarta Arcan 1992 Cet. 6 ind 108 hlm 19 cm Paul Van Riel Jerawat 616.53 797-431-161-8 20090227022910.0 YOGYA-02090000018702 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)