Gaya APA
Walzer, P, D., Cushion, M, T.
(2008).
Pneumocystis Pneumonia
(
Third edition)
.
USA:
IKIP Semarang Perss.
Gaya MLA
Walzer, Peter, D.., Cushion, Melanie, T..
"Pneumocystis Pneumonia".
Third edition
USA:
IKIP Semarang Perss,
2008.
.