Gaya APA
ROTH, R, M. et al
(2013).
System analysis and design :
(
5 th ed.)
.
Singapore:
John Wiley & Sons.
Gaya MLA
ROTH, Roberta, M.. et al.
"System analysis and design :".
5 th ed.
Singapore:
John Wiley & Sons,
2013.
Buku.