Gaya APA
ALLUM, V., MCGARR, P. (2010).
CAMBRIDGE ENGLISH FOR NURSING PRE-INTERMEDIATE .
PURALINGGA:
Chelsea House.
Gaya MLA
ALLUM, VIRGINIA., MCGARR, PATRICIA.
"CAMBRIDGE ENGLISH FOR NURSING PRE-INTERMEDIATE".
PURALINGGA:
Chelsea House,
2010.
PERAWAT.