Gaya APA
Mico, H, S, R, R. (1980).
theory and practice in health education (1).
California-USA:
Mayfield Publishing Company.
Gaya MLA
Mico, Helen, S., Ross-Paul, R..
"theory and practice in health education".
1
California-USA:
Mayfield Publishing Company,
1980.
Kesehatan Masyarakat.