Somkuan KaviyaThavi MasmondanaSomchit Chaipakdee2007-11-131994-04-012007-11-131989http://hdl.handle.net/10625/15643Meeting: Agricultural Communication Research Workshop, 27-30 Mar. 1989, Singapore, SGText45 p. : ill.Application/pdfenAGRICULTURAL EXTENSIONINNOVATIONCOMMUNICATIONTHAILANDEVALUATIONOBSTACLES TO DEVELOPMENTAgricultural extension system of ThailandConference Report