The Princeton Encyclopedia of Islamic Political Thought

Moosa, Ebrahim, Cook, David, Hefner, Robert W., Griffel, Frank, Bulliet, Richard, Zaman, Muhammad Qasim, Bowering, Gerhard, Mirza, Mahan, McAuliffe, Jane, Fahmy, Khaled, Crone, Patricia, Haykel, Bernard, Stewart, Devin J., Euben, Roxanne L., Kadi, Wadad