Bailey, Stephen K., author
Syracuse University Press, 1968
Buku Teks
edited by J. C. M. M Moonen, H.E. Wuite-Harmsma
North-Holland, 1984
Buku Teks
Pierson, Frank C.
McGraw-Hill, 1959
Buku Teks
Butts, R. Freeman
Beacon Press, 1950
Buku Teks
Billett, Stephen, author
Springer, 2011
Buku Teks