Readings in philosophy
edited by John Herman Randali, Justus Buchler
Barnes & Noble, 1950
 Buku Teks
Treasury of world philosophy
edited by Dagobert D. Runes
Littlefield, Adams & Co., 1959
 Buku Referensi
Stumpf, Samuel Enoch, 1918-1998
Philosophical problems: selected readings in ethics, religion, political philosophy, epistemology, and metaphysics
McGraw-Hill, 1971
 Buku Teks
Ideological differences and world order: studies in the philosophy and science of the world's cultures
edited by F.S.C. Northrop
Yale University Press, 1949
 Buku Teks
Stumpf, Samuel Enoch, 1918-1998
Philosophy: history and readings
McGraw-Hill, 2012
 Buku Teks