TY  - BOOK
AU  - Sumtum Parisuthiman
TI  - Business communication : a functional approach [1988]
SN  - 9745712795
AV  - HF5718.59 S95B 1988 
PY  - 1988///
CY  - Bangkok : 
PB  - Thammasat University Press, 
KW  - Communication in management
KW  - Commercial correspondence
ER  -