TY  - BOOK
AU  - HWANG,Geon-Gi
AU  - Denny Supriyadi
TI  - Why? Rockets and Spacecrafts
SN  - 978-979-27-9592-9
U1  - 520. 
PY  - 2011///
CY  - Jakarta
PB  - Elex Media Komputindo
KW  - 0
KW  - Grade 7-9
ER  -