Volpe, E. Peter (Erminio Peter)
W.C. Brown, 1975
Buku Teks
Horwitz, Allan V.
Oxford University Press, 2016
eBooks
Anderson, Gail S
Simon Fraser University Publication, 2007
Buku Teks
Starr, Cecie
Brooks/Cole Cengage Learning, 2013
Buku Teks
Academic Press, 2013
eBooks