Gaya APA
Beatty, K.
(2008).
Epidemics: 9 SFLEP Longman Secondary English Graded Readers
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Hong Kong:
Pearson Longman.
Gaya MLA
Beatty, Ken.
"Epidemics: 9 SFLEP Longman Secondary English Graded Readers".
Hong Kong:
Pearson Longman,
2008.
Karya Cetak.