Erika Cudworth, Stephen Hobden and Emilian Kavalski, editors
Routledge, Taylor & Francis Group, 2018
Buku Teks
Smarandache, Florentin, author
Xiquan, 2004
Buku Teks
Chambers, Iain, author
Routledge, 1990
Buku Teks
translated by W.H.D. Rouse
Mentor Books , 1956
Buku Teks
Dixson, Robert J., author
Regents Oublishing, 1953
Buku Teks