bunga rampai text Jakarta Gramedia 1988 ind 307 hlm ilus 21 cm Jean Piaget ; penyunting, Agus Cremers Bibliografi : hlm. 301-306 Indeks Psikologi Perkembangan 155.4 979-403-370-7 20090227020903.0 YOGYA-02090000006311 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)