TY  - BOOK
AU  - Chhuon Chan Than
ED  - National Examining Board for Supervision and Managerment
TI  - ááááááááááá¶ááá¢ááááá·áááááá¶ááááááááá: áá¶áááááá¹áá¢ááá¸ááá¶ááá¶áááá á·ááááááááá»ááá¶áááá¸áááá
U1  - 657 
PY  - 2004///
CY  - Phnom Penh
PB  - IIC Press
ER  -