Gaya APA
Doyle, S, A, C.
(2019).
Lembah Ketakutan (The Valley of Fear)
.
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
Doyle, Sir, Arthur, Conan.
"Lembah Ketakutan (The Valley of Fear)".
Jakarta:
Gramedia Pustaka Utama,
2019.
Art Original.