Gowland-Mwangi, J., John Odiaga Oloo, & Stephen Wambugu Maina. (2010). THE EFFECTIVENESS OF FARMER FIELD SCHOOLS’ EXTENSION METHODOLOGY IN CONSERVING SOIL AND WATER USING CONTOUR PLOUGHING, UNPLOUGHED STRIPS AND FARM YARD MANURE. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 26. presented at the November/2010. Retrieved from https://journals.indexcopernicus.com/search/article?articleId=2594298