Gaya APA
Pickell, D., Siagian, W. (2000).
Diving Bali , the underwater jewel of southeast Asia .
Singapure:
Periplus Edition.
Gaya MLA
Pickell, David., Siagian, Wally.
"Diving Bali , the underwater jewel of southeast Asia".
Singapure:
Periplus Edition,
2000.
Text.