Gaya APA
Friedman, G, D.
(1993).
Prinsip-Prinsip Epidemiologi
.
Yogyakarta:
Yayasan Essentia Medica.
Gaya MLA
Friedman, Gary, D.
"Prinsip-Prinsip Epidemiologi".
Yogyakarta:
Yayasan Essentia Medica,
1993.
PRINTED BOOK.