info:oai:icrisat:11381info:ofi/fmt:xml:xsd:journalTraoreKalifaTraore, KalifaBirhanuZ BBirhanu, Z BSoil Erosion Control and Moisture Conservation Using Contour Ridge Tillage in Bougouni and Koutiala, Southern MaliJournal of Environmental Protection (TSI)2152-2197October 2019101333-136010article