TY  - BOOK
TI  - Alam sekitar
T2  - Siri sains junior
SN  - 9831540344
U1  - 039.992302 23
PY  - 2002///
CY  - Petaling Jaya, Selangor : 
PB  - Sejati Books , 
KW  - Question and answers
ER  -