Maritain, Jacques, author
Sheed & Ward Book, 2005
Buku Teks SO
editor, Prapto Yuwono, Dwi Woro Retno Mastuti, Darmoko
Program Studi Jawa Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2004
Buku Teks
Windelband, Wilhelm, author
Dover, 1956
Buku Teks
Stumpf, Samuel Enoch, 1918-1998, author
McGraw-Hill, 1989
Buku Teks SO
Kenny, Anthony, author
Blackwell Publishing, 2007
Buku Teks