Society of Archbishop Justus
Toyohiko Kagawa, Renewer of Society
This is a biography of the life and influence of Toyohiko Kagawa. It gives a detailed description of his social activism and religious beliefs.
University of Wisconsin
Japan: Consumer Co Op Movement in Japan (1995)
This site details Toyohiko Kagawa's relationship to the "Japanese consumer co-op movement." It is a good example of how his religious views influenced him into social activism by starting this organization.