Gaya APA

DOYLE, S, A, C. (2021). SHERLOCK HOLMES MISTERI TANDA EMPAT : THE SIGN OF FOUR . YOGYAKARTA: LAKSANA.

Gaya MLA

DOYLE, SIR, ARTHUR, CONAN. "SHERLOCK HOLMES MISTERI TANDA EMPAT : THE SIGN OF FOUR". YOGYAKARTA: LAKSANA, 2021. Text.