Find books by searching CAMEO, the library catalog. Use related keywords (as in "Articles" to the right) or these specific subject headings:
Some examples:
The Psychology of Conflict and Conflict Management in Organizations by 
Successful Negotiating :the essential guide to thinking and working smarter by 
Problematic Relationships in the Workplace by 
Facilitator's Guide to Participatory Decision-Making (e-book) by Use keywords such as: conflict resolution, mediation - and add work-related terms such as workplace, office, co-workers, employees, organizational - etc.
Academic research about a variety of topics with particular focus in business and management issues. Contents include journals, books and case studies.
