Gaya APA

harmer, J. (). The SMA students proficiency in using punctuation and capitalization : a case study at SMA... . Jakarta: fpbs. bahasa dan sastra inggris.

Gaya MLA

harmer, Jeremy. "The SMA students proficiency in using punctuation and capitalization : a case study at SMA...". Jakarta: fpbs. bahasa dan sastra inggris, . Text.