TY  - BOOK
AU  - Krongthong Khairiree
AU  - Tran Vui 
TI  - Workbook discovering mathematics 4
SN  - 9786167774176 :
U1  - 510 
PY  - 2014///
CY  - Bangkok
PB  - Pada Education
KW  - Mathematics
KW  - Problems, exercises, etc
N1  - Includes index
ER  -