Joan, Dean, author
Routledge , 2001
Buku Teks
edited by S.T. Cowan, G.I. Barrow, R.K.A. Feltham
Cambridge University Press, 1993
Buku Teks
Wolf, Stanley, author
Prentice-Hall, 1990
Buku Referensi
edited by Robert J. Lawrie
McGraw-Hill, 1987
Buku Referensi
edited by Andrew B. Peitzman
Wolters Kluwer Health & Lippincott Williams & Wilkins, 2013
Buku Teks