Gaya APA

Marakas, G, M. (2006). Systems Analysis and Design : an Active Approach / George M Marakas (Ed.2). New York: Mc Graw Hill.

Gaya MLA

Marakas, George, M. "Systems Analysis and Design : an Active Approach / George M Marakas". Ed.2 New York: Mc Graw Hill, 2006. Buku.