text Jakarta Intermedia 1993 Cet. 1 ind X, 121 hlm ilus 24 cm Toeti Soekamto Bibliografi : hlm. 119-121 Mengajar - Sistem instruksional 371.3 20090227022625.0 YOGYA-02090000016282 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)