TY  - BOOK
AU  - Wittaya Damrongkiattisak
TI  - Communication effectiveness between commune extension agents and rice farmers in Chiang Mai
PY  - 1985///
CY  - Ann Arbor, Mich.
PB  - University Microfilms International
KW  - Communication in agriculture
KW  - Thailand
N1  - Thesis (Ph.D.)-The Pennsylvania State University, 1984
ER  -