Gaya APA
Bachtiar, R, R.
(205).
GERD : Gastroesophageal Reflux Disease
.
Yogyakarta:
Deepublish.
Gaya MLA
Bachtiar, Rini, R..
"GERD : Gastroesophageal Reflux Disease".
Yogyakarta:
Deepublish,
205.
Text.