ECONOMIC METHODOLOGY UNDERSTANDING ECONOMICS AS A SCIENCE
2010 年出版209 页ISBN：9780230218123
OWO：A YORUBA FRONTIER KINGDOM，SOUTHWESTERN NIGERIA
2010 年出版353 页ISBN：3639289293
DEVELOPMENT AND SOCIAL CHANGE A GLOBAL PERSPECTIVE
1996 年出版310 页ISBN：0803990669
THE HYDROPOLITICS OF AFRICA A CONTEMPORARY CHALLENGE
2007 年出版344 页ISBN：9781847181121
GLOBAL ADMINISTRATIVE LAW TOWARDS A LEX ADMINISTRATIVA
2010 年出版398 页ISBN：1907174044
UNDERSTANDING LANGUAGE:A BASIC COURSE IN LINGUISTICS
2007 年出版255 页ISBN：9780826484833
