HPAA, 1984
Buku Teks
Rosen, George, author
The Johns Hopkins University Press, 1993
Buku Teks
Birn, Anne-Emanuelle, author
Oxford University Press, 2017
eBooks
Naidoo, Jenniem], author
Bailliere Tindal Elsevier, 2011
Buku Teks
Riegelman, Richard K., author
Jones and Bartlett Learning, 2015
Buku Teks