Roberts, J.A. Fraser
Oxford University Press, 1985
Buku Teks
James J. Nora [and others]
Lea & Febiger , 1994
Buku Teks
Nussbaum, Robert L., author
Elsevier , 2016
Buku Teks
Dronamraju, Krishna R., editor
Springer, 2012
eBooks
Cohen, Felissa L.
J.b. Lippincott , 1984
Buku Teks