Gaya APA

Zulkarnain, D, M. (2014). Improving students' ability in writing descriptive text using clustering technique in SMPN 3 Blitar . Kediri: STAIN KEDIRI.

Gaya MLA

Zulkarnain, Danang, Muhammad. "Improving students' ability in writing descriptive text using clustering technique in SMPN 3 Blitar". Kediri: STAIN KEDIRI, 2014. Text.