Gaya APA
Cambridge IGCSE™ English as a Second Language Workbook with digital access (2 Yrs) - 6th Edition. ().
Jakarta:
Cambridge.
Gaya MLA
Cambridge IGCSE™ English as a Second Language Workbook with digital access (2 Yrs) - 6th Edition.
.
Jakarta:
Cambridge,
.
Koleksi SMA.