1. Selective client approach in extension work: a study of contact farmers in Bangladesh Collection: Agricultural Communications Documentation Center (ACDC) Contributers: Hassanullah, M. (author) Format: Journal article Publication Date: 1990-06 Published: Bangladesh Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C23028 Journal Title: Journal of Extension Systems Journal Title Details: 6(1) : 74-86