Windelband, Wilhelm
Dover, 1956
Buku Teks SO
Gomperz, Theodor
John Murray , 1955
Buku Teks SO
edited and translated by Martin Palmer, with Mak Hin Chung, Kwok Man Ho and Angela Smith
Rider & Company, 1986
Buku Teks SO
edited by John K. Ryan
Catholic University of America Press, 1963
Buku Teks SO
Bentley, John Edward
Littlefield, Adams, 1958
Buku Teks SO