edited by E.K. Fisk
Australia National University, 1966
Buku Teks
Godwin, C. J.
Tata McGraw-Hill, 1972
Buku Teks
Brode, John
Harvard University Press, 1969
Buku Referensi
Martin, Brian
Freedom Press, 1993
Buku Teks
Moore, Wilbert E. (Wilbert Ellis)
Prentice-Hall, 1963
Buku Teks