Gaya APA
Harsono, .
(2008).
Pengantar Problem-Based Learning
(
2)
.
Yogyakarta:
Gadjah Mada University Press.
Gaya MLA
Harsono, .
"Pengantar Problem-Based Learning".
2
Yogyakarta:
Gadjah Mada University Press,
2008.
Teks (Text).