Ultra, J. D. (2013). A collaborative access control model for e-voting systems. College of Engineering, University of the Philippines Diliman.
Chicago-referens (17:e uppl.)Ultra, John D. A Collaborative Access Control Model for E-voting Systems. Quezon City: College of Engineering, University of the Philippines Diliman, 2013.
MLA-referens (9:e uppl.)Ultra, John D. A Collaborative Access Control Model for E-voting Systems. College of Engineering, University of the Philippines Diliman, 2013.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.