upaya peningkatan produktivitas text Yogyakarta Kanisius 1994 Cet. 1 ind Ind 186 hlm ilus 21 cm Suyatno Risza Bibliografi : hlm. 182-186 YOPDYOG(B) Kelapa sawit 634.6 979-487-082-4 20090227040113.0 YOGYA-02090000062936 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)