Gaya APA
Hermawan, D., Gary...[et.al], C., F. (2010).
Williams Obstetrics; 24th ed. (24).
New York:
McGraw-Hill-Education.
Gaya MLA
Hermawan, D., Gary...[et.al], C., F..
Williams Obstetrics; 24th ed..
24
New York:
McGraw-Hill-Education,
2010.
Textbook.