Budziszewski, J.
Cambrigde University Press , 2014
Buku Teks
Budziszewski, J., author
Cambridge University Press, 2020
eBooks
Artikel Jurnal
Alfredo Rimper, author
Universitas Indonesia, 2011
UI - Tesis (Open)
Declareuil, J.
Kegan Paul, 1927
Buku Teks