8By Shelley H. Billig. Support for K-12 Service-Learning Prac- tice: A Brief Review of the Researeh[J]. Educational HORI- ZONS, Summer 2002:184-189.
9Janet S. Eyler, Dwight E. Giles, Jr. , Christine M. Stenson, and Charlene J. Gray. At A Glance: What We Know about The Effects of Service-Learning on College Students, Faculty, Insti- tutions and Communities, 1993-2000: Third Edition[M] Funded by the Corporation for National Service Learn and Serve America National Service Learning Clearinghouse.
10Lori J. Vogelgesang and Alexander W. Astin. Comparing the Effects of Community Service and Service-Learning[J]. Michigan Journal of Community Service Learning Fall 2000:25-34.