Grambs, Jean Dresden
Holt Renehart and Winston, 1979
Buku Teks
Millett, John D., author
New York, N.Y. Columbia University Press 1956,
Buku Teks
Millet, John D.
Columbia Univ. Press , 1952
Buku Teks
Beck, John
John Wiley , 1980
Buku Teks
Vaizey, John
Gunung Agung, 1974
Buku Teks