Gaya APA
ABDULLAH, M., FIRMANSYAH, M. (2013).
Clinical approach and management of chronic diarrhea .
Jakarta:
Interna Publishing.
Gaya MLA
ABDULLAH, Murdani., FIRMANSYAH, M.Adi.
"Clinical approach and management of chronic diarrhea".
Jakarta:
Interna Publishing,
2013.
Majalah.