Shoske, Daniel A., editor
Springer, 2012
eBooks
Youngkin, Ellis Quinn, author
Appleton & Lange , 1998
Buku Teks
McMahon, Rosemary, author
World Health Organization, 1992
Buku Teks
Byyny, Richard L., author
Williams & Wilkins, 1996
Buku Referensi
King, Maurice H. (Maurice Henry), author
Univ. of Malaya, 1979
Buku Teks