na INLIS000000000003434 20241223010709 0010-1224000966 241223 0 ind An Introduction to Agricultural Extension / AT Mosher Mosher, AT New york : Singapore university Press, 1978 114 hlm. ; 15x22 cm 630.7 MOS A C.1 630.7 Pendidikan Pertanian, Riset Penelitian Pertanian 040611200006116