Gaya APA
Doyle, S, A, C.
(2016).
The Valley of Fear: Misteri Lembah Ketakutan
.
yogakarta:
INDO LITERASI.
Gaya MLA
Doyle, Sir, Arthur, Conan.
"The Valley of Fear: Misteri Lembah Ketakutan".
yogakarta:
INDO LITERASI,
2016.
.