Frandy Antoniwijaya, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2019
UI - Skripsi Membership
Altman, Matthew C, author
John Wiley & Sons, 2014
Buku Teks
Llewelyn, John
Routledge, 1999
Buku Teks
Beck, Lewis White
The University of Chicago Press, 1960
Buku Teks
U.S.A : Bowling Green U.S.A. Philosophy Documentation Center
Majalah, Jurnal, Buletin