Robert L. Johnson

The soybean complex spread: An examination of market efficiency from the viewpoint of a production process

Scott H. Irwin, Carl Zulauf, S. Irwin, 1991 .

PSYCHOLOGY core concepts

Philip G. Zimbardo, P. Zimbardo, Robert L. Johnson, 2006 .

Corporate Strategy And The Social Networking Phenomena

Robert L. Johnson, 2011 .