Beamish, Paul W., 1953-
Irwin, 1997
Buku Teks
edited by Daniel Frei
Sage, 1982
Buku Teks SO
[edited by] Leonard A. Schlesinger, Robert G. Eccles, John J. Gabarro ; with the assistance of Thomas B. Lifson, James P. Ware
McGraw-Hill, 1983
Buku Teks SO
Zentes, Joachim
Gabler Verlag, 2011
eBooks
Schefer, Krista Nadakavukaren
Edward Elgar Publishing, 2016
Buku Teks