Games, Paul A., author
McGraw-Hill, 1967
Buku Teks
Shapiro, Jesse M.
Charles E. Merrill, 1967
Buku Teks
Zechmeister, Eugene B., author
Thomson/Wadsworth, 2003
Buku Teks
Grice, James W., author
Elsevier , 2011
Buku Teks
Krug, Ronald S., author
Springer-Verlag, 1992
Buku Teks