Bergmans, Bernhard, author
Graham and Trotman, 1991
Buku Teks
Bainbridge, Stephen M., author
UK Edward Elgar Publishing, 2016
Buku Teks
Balekjian, W.H.
Oceana Publications, Inc., 1967
Buku Teks
Paxton, John, author
Macmillan, 1976
Buku Referensi
Hall, Margaret, author
Hutchinson's University Library, 1949
Buku Teks