Teng, Wayne C., author
Prentice Hall of India, 1981
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
Coduto, Donald P.
Prentice-Hall, 1994
Buku Teks
Peck, Ralph B. (Ralph Brazelton), author
Charles E. Tuttle, 1953
Buku Teks