Coulson, Noel J., author
University Press, 1971
Buku Teks
McWhinney, Ian R., author
Oxford University Press, 1981
Buku Teks
edited by Philip D. Sloane ... [and others]
Williams & Wilkins , 1998
Buku Teks
Nichols, Michael P., author
Pearson Education, 2014
Buku Teks
Freeman, Thomas, 1948-, author
Oxford University Press, 2016
Buku Teks