TY  - BOOK
AU  - Abu Hassan Ali, 
TI  - Bunyi
T2  - Siri saintis muda
SN  - 967611037X
U1  - 534 23
PY  - 2000///
CY  - Kuala Lumpur : 
PB  - Utusan , 
KW  - Sounds
ER  -