Gaya APA
Sigma, .
(2010).
145 Questions & Answers Pregnancy and Childbirth
(
Ed Ke I)
.
Yogyakarta:
Sheila Publisher.
Gaya MLA
Sigma, .
"145 Questions & Answers Pregnancy and Childbirth".
Ed Ke I
Yogyakarta:
Sheila Publisher,
2010.
Text.