TY - JOUR AU - Torkashvand Mohammadi, Ali TI - The possibility of using map of land units as map of working units in providing maps of surface, rill and Gully erosions by Geographic Information System (GIS) JO - Journal of Studies of Human Settlements Planning VL - 5 IS - 10 SP - 57 EP - 74 PY - 2010 DO - ER -