Gaya APA

HAKIM, L, A. (2012). Improving students english writing skill using cooperative integrated reading and composition (CIRC) . : Pascasarjana UNS.

Gaya MLA

HAKIM, Luqman, Al. "Improving students english writing skill using cooperative integrated reading and composition (CIRC)". : Pascasarjana UNS, 2012. Text.