edited by Christopher G. Reddick, Jerrell D. Coggburn
CRC Press, 2008
Buku Referensi
Martocchio, Joseph J.
Irwin, McGraw-Hill, 2014
Buku Teks
edited by Jerry S. Rosenbloom
Dow Jones-Irwin, 1984
Buku Referensi
Dow Jones-Irwin, 1984
Buku Teks SO
Pascale, Richard T.
Simon & Schuster, 1981
Buku Teks SO