8Barrows Howard S. The essentials of problem-based learning[J]. Journal of Dental Education, 1998, 62(9): 630-633. 被引量：1
9Rhem J. Problem-based learning= an introduction[J]. The national teaching & learning forum. The Higher Education Academy. 1998, 8(1): 1-4. 被引量：1
10Mayo W P, Donnelly M B, Schwartz R W. Characteristics of the i- deal problem-based learning tutor in clinical medicine[J]. Evalua- tion & the Health Professions, 1995, 18(2): 124-136. 被引量：1
