Schottland, Charles I.
Appleton-Century-Crofts, 1963
Buku Teks
Asni Dewi Syahriani Bishry
Program Pascasarjana Universitas Indonesia, 2007
UI - Tesis Membership
Gingrich, Newt
Regnery, 2011
Buku Teks SO
Fajar Fermi Taruna
Program Pascasarjana Universitas Indonesia, 2013
UI - Tesis Membership
Diah Arlinawati
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2013
UI - Skripsi Membership