Martin, James, author
Prentice-Hall, 1995
Buku Teks
Teng, Wayne C., author
Prentice Hall of India, 1981
Buku Teks
Peck, Ralph B. (Ralph Brazelton), author
Charles E. Tuttle, 1953
Buku Teks
Tomlinson, M. J. (Michael John), author
John Wiley & Sons, 1963
Buku Teks
Tomlinson, M.J. (Michael John), author
John Wiley & Sons, 1975
Buku Teks