Powell, G. Bingham
Elections as instruments of democracy : majoritarian and proportional visions
Yale University Press, 2000
 Buku Teks
Bowler, Shaun
Demanding choices: opinion, voting, and direct democracy / Bowler Shaun and Donovan Todd;
The University of Michigan Press, 200
 Buku Teks
Transisi menuju demokrasi, jilid 3 : Tinjauan berbagai perspektif = Transitions from authoritarian rule. Comparative perspectives
edited by Guillermo O`Donnell, Philippe C. Schmitter, and Laurence Whitehead
LP3ES , 1993
 Buku Teks
Transisi menuju demokrasi : Tinjauan berbagai perspektif
editor, Guillermo O`Donnell, Philippe C. Schmitter, and Laurence Whitehead; penerjemah, Ade Armando
LP3ES, 1993
 Buku Teks
Transisi menuju demokrasi, jilid 4 : Rangkaian kemungkinan dan ketidakpastian = Transitions from authoritarian rule. Tentative conclusions about uncertain democracies / by Guillermo O?Donnell and Philippe C. Schmitter
LP3ES, 1993
 Buku Teks