APA Style
Yusuf, I.
(2009).
Diagnosis Gastroesophageal Reflux Disease (GERD) Secara Klinis
.
Jakarta:
Dexa Medica.
MLA Style
Yusuf, Ismail.
"Diagnosis Gastroesophageal Reflux Disease (GERD) Secara Klinis".
Jakarta:
Dexa Medica,
2009.
Text.