Gaya APA
Tilley, S., Rosenblatt, H. (2020).
System Analysis and Design, 12th Edition (Ed. 12).
Singapura:
Cengage Learning Asia Pte Ltd.
Gaya MLA
Tilley, Scott., Rosenblatt, Harry.
"System Analysis and Design, 12th Edition".
Ed. 12
Singapura:
Cengage Learning Asia Pte Ltd,
2020.
Teks (Text).