1. Agricultural extension systems characteristics: a matrix for examining extension models Collection: Agricultural Communications Documentation Center (ACDC) Contributers: Rivera, William M. (author) and Wheeler, Robert J. (author) Format: Journal article Publication Date: 1989-12 Published: International Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C23020 Journal Title: Journal of Extension Systems Journal Title Details: 5(2) : 75-97
2. Knowledge storage and retrieval: two important processes in the dissemination system Collection: Agricultural Communications Documentation Center (ACDC) Contributers: Wijeratne, Mahinda (author) Format: Journal article Publication Date: 1989-06 Published: Sri Lanka Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C23012 Journal Title: Journal of Extension Systems Journal Title Details: 5(1) : 54-59