Pugh, D. S.
Buku Teks
Tompkins, Jonathan R., author
Wadsworth, 2005
Buku Teks
Woodward, Joan, author
Oxford University Press, 1965
Buku Teks
Daft, Richard L., 1964-, author
West Publishing, 1986
Buku Teks
Litterer, Joseph August, 1926-, author
John Wiley & Sons, 1973
Buku Teks