Gaya APA
dkk, L, M.
(2010).
Hip Hip Horay Workbook Second Edition 2
.
Hongkong:
Pearson Longman.
Gaya MLA
dkk, Laura, Miller,.
"Hip Hip Horay Workbook Second Edition 2".
Hongkong:
Pearson Longman,
2010.
Text.