Chen, Liu-Fu
Philosophy of life
Philosophical Library, 1948
 Buku Teks
Chesters, Sarah Davey
The socratic classroom: reflective thinking throught collaborative inquiry
Sense, 2012
 eBooks
Toynbee, Arnold J.
Choose life : a dialogue
Oxford University Press, 1976
 Buku Teks
George, Richard T. de, editor
The Philosopher?s guide to sources, research tools, professional life, and related fields / Richard T. De George
Regents Press of Kansas, 1980
 Buku Referensi
Hepner, Harry W.
The best things in life
B.C. Forbes & Sons, 1953
 Buku Teks