Lauterbach, Albert
Cornell University Press, 1954
Buku Teks
Halimah Tun Syakdiah
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2017
UI - Skripsi Membership
Frey, Bruno S.
Princeton University Press, 2002
Buku Teks
Mawdudi, Sayyid Abul A`la
IPS, 2011
Buku Teks
Khan, Muhammad Akram
Routledge, 2003
Buku Referensi