Scott, Austin Wakeman, 1884-1981, author
Little, Brown, 1966
Buku Teks
Hemphill, Charles F., author
Prentice-Hall, 1980
Buku Teks
Jung, Claude
Payot, 1949
Buku Klasik
Prisse, Th.A.G.
W.E.J.Tjeenk Willink, 1995
Buku Teks
Jansen, H.P.J. Heukensfeldt, author
Harms, 1954
Buku Klasik