John A. Alic ... [et al.]
Harvard Business Scholl Press, 1992
Buku Teks
Friedrich, Carl J.
Rinehart, 1948
Buku Teks
edited by Suzanne McMahon; Miriam Palm; Pam Dunn
The Haworth Press, Inc., 1991
Buku Teks
edited by Franklin D. Margiotta, James Brown, and Michael J. Collins
Westview Press, 1983
Buku Teks
Wachner, Clarence W.
Macmillan, 1963
Buku Teks