Sayles, Leonard R., author
McGraw-Hill , 1964
Buku Teks
Organ, Dennis W, author
SAGE Publ., 2006
Buku Teks
Lui Lam
World Scientific, 1998
Buku Teks
Liz Swan, editor
[, Springer], 2012
eBooks
Staats, Arthur W.
Holt, Rinehart and Winston, 1964
Buku Teks