TY  - BOOK
AU  - Syakir A.M, 
TI  - Innovation challenge
T2  - Science Inventions Series
SN  - 9832671469 ; 9789832671466
U1  - 428.6 23
PY  - 2006///
CY  - Kuala Lumpur : 
PB  - Penerbit Era Didik , 
KW  - Readers - Fiction
N1  - Includes questions and activities ; Includes glossary
ER  -