Gaya APA
Rick, W.
(2018).
Searching for new frontiers Searching for new forntiers
(
Cet .1)
.
Singapore:
SPi Global.
Gaya MLA
Rick, Worland.
"Searching for new frontiers Searching for new forntiers".
Cet .1
Singapore:
SPi Global,
2018.
BUKU.