na YOGYA-02090000028460 20090227024232.0 ind 979-489-014-6 010-020900000028460 627.52 627.52 Wud M T WUDIANTO, Rini Mencegah erosi Rini Wudianto Cet. 3 Jakarta Penebar Swadaya 1990 31 hlm ilus 21 cm Teknologi-XVIII/247/89 Bibliografi : hlm. 32 Erosi - Pencegahan YOPDYOG(B) 1 A000013855