Gaya APA
Barrows, H, S, . (1989).
How To Design a Problem-Based Curriculum For The Preclinical Years .
Jakarta:
Sprringer Publishing Company.
Gaya MLA
Barrows, Howard, S., .
"How To Design a Problem-Based Curriculum For The Preclinical Years".
Jakarta:
Sprringer Publishing Company,
1989.
Kesehatan Masyarakat.