La Piere, Richard. T
Mc Graw-Hill, 1954
Buku Teks
Barnett, Stephen, author
Clarendon Press, 1990
Buku Teks
Burghes, David N., author
John Wiley & Sons, 1980
Buku Teks
edited by Paul Van Dooren and Bostwick Wyman
Springer-Verlag, 1994
Buku Teks
Tou, Julius T., author
McGraw-Hill, 1964
Buku Teks