na YOGYA-02090000034276 20090227024856.0 ind 979-489-014-6 010-020900000034276 631.45 631.45 Wud M T WUDIANTO, Tini Mencegah erosi Rini Wudianto Cet. 5 Jakarta Penebar Swadaya 1992 31 hlm ilus 21 cm Seri Teknologi : xviii/247/89 Bibliografi : hlm. 32 Erosi - Pencegahan YOPDYOG(B) 19-10-06 2 95P0057997 95P0057998