Gaya APA
ROBERTS, R, M.
(2021).
TANGGA SPIRAL : THE CIRCULAR STAIRCASE
.
YOGYAKARTA:
LAKSANA.
Gaya MLA
ROBERTS, RINEHART, MARY.
"TANGGA SPIRAL : THE CIRCULAR STAIRCASE".
YOGYAKARTA:
LAKSANA,
2021.
Text.