کتاب های Robert M. Kauffman

Economics, Information Systems, and Electronic Commerce: Empirical Research
Robert J. Kauffman, Paul P. Tallon, 2008
Career Development in Recreation, Parks and Tourism: A Positioning Approach
Robert Kauffman, 2009
Career development in recreation, parks, and tourism : a positioning approach
Robert B Kauffman, 2010
The Deficiency Index Problem for Powers of Ordinary Differential Expressions
Robert M. Kauffman, 1977