na YOGYA-02090000028161 20090227024215.0 ind 979-489-016-2 010-020900000028161 574.52 574.52 Kus P T KUSNO, S Pencegahan pencemaran pupuk dan pestisida Kusno S Cet. 4 Jakarta Penebar 1991 24 hlm ilus 21 cm Ekologi YOPDYOG(B) 3 94P0048722 94P0048723 95P0058013