Pieris, Ralph, author
Rotterdam University Press, 1969
Buku Teks
Mayer, J.P., author
Faber and Faber, 1948
Buku Teks
Becker, Howard Saul, 1928-, author
The Free Press, 1973
Buku Teks
Westhues, Kenneth, author
McGraw-Hill, 1972
Buku Teks
W. van Hoeve, 1958
Buku Teks