McMullin, Rian E, author
W.W. Norton, 2000
Buku Teks
Silberman, Melvin L., author
Pfeffer, 2006
Buku Teks
Birmington, Richard
Granada Publishing, 1984
Buku Teks
Castaldi, Patricia A., author
Elsevier, 2005
Buku Teks
Jason Andress ... [et al.]
Elsevier, 2011
Buku Teks