Tannsjo, Torbjorn, author
Edinburgh University Press, 2010
Buku Teks
Tiles, J.E., author
Routledge, 2000
Buku Teks
Franz Magnis-Suseno, author
Gramedia Pustaka Utama, 2000
Buku Teks
Smith, Michael, author
Cambridge University Press , 2004
Buku Teks
edited by Hugh LaFollette and Ingmar Persson
Wiley Blackwell, 2013
Buku Teks