This book provides an in-depth look at ethics for leaders. It explores the issue of ethical leadership from multiple perspectives, and connects it to the different drivers of business from immigration, information technology, to globalization and everything in between. EXCELLENT READ! (600 pages)
This paper proposes a model of group effectiveness that integrates two sets of factors, namely, group structure and individual characteristics.
This presentation introduces the concept and lays out the conditions for team effectiveness.
This whitepaper compares six team effectiveness leadership models.
An essay on ethics and leadership effectiveness in business
An excellent presentation on the topic especially if you are new to the topic.  MUST Read!