Gaya APA
Sofyan, M.
(2009).
ROCK CLIMBING PANJAT TEBING
(
cet. 1)
.
Jakarta Selatan:
CV Ricardo.
Gaya MLA
Sofyan, M..
"ROCK CLIMBING PANJAT TEBING".
cet. 1
Jakarta Selatan:
CV Ricardo,
2009.
Reference.