R. Williams 
Party Finance and Political Corruption [PDF ebook] 

This book offers an in-depth examination of party finance and political corruption in a variety of political contexts. Its central focus is on the relationship between different forms of raising party finance and the consequent implications for improper influence over policy making and implementations. It presents both a general discussion of the issues and a set of case studies which illuminate the particular experiences of Britain, the United States, Russia, Italy, Germany and Southeast Asia.