edited by Harry W. Karn and B. von Haller Gilmer
McGraw-Hill, 1962
Buku Teks SO
edited by by Harold J. Leavitt and Louise R. Pondy
University of Chicago Press, c1964
Buku Teks
edited by Harold J. Leavitt and Louis R. Pondy
University of Chicago Press, 1964
Buku Teks SO
Gilmer, B. von Haller (Beverly von Haller), 1909-1994
McGraw-Hill, 1977
Buku Teks
Tiffin, Joseph
Prentice-Hall, 1958
Buku Teks