Ultra, J. D. (2013). A collaborative access control model for e-voting systems. College of Engineering, University of the Philippines Diliman.
Citazione stile Chigago Style (17a edizione)Ultra, John D. A Collaborative Access Control Model for E-voting Systems. Quezon City: College of Engineering, University of the Philippines Diliman, 2013.
Citatione MLA (9a ed.)Ultra, John D. A Collaborative Access Control Model for E-voting Systems. College of Engineering, University of the Philippines Diliman, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.