COCKBURN, A. (2004). WRITING EFFECTIVE USE CASES. PEARSON.
Chicago Style aipamenaCOCKBURN, A. WRITING EFFECTIVE USE CASES. NEW DELHI: PEARSON, 2004.
MLA aipamenaCOCKBURN, A. WRITING EFFECTIVE USE CASES. PEARSON, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.