Freeman, Joshua, author
Copernicus Healthcare, 2015
Buku Teks
Brown, Brian, author
Open University Press, 2003
Buku Teks
Brant, Xenia Maria Caldeira, editor
Springer, 2012
eBooks
Swage, Thoreya, author
Butterworth-Heinemann , 2004
Buku Teks
Muhammad Ameerul Amin Bakar, author
UMT, 2017
Artikel Jurnal