Gaya APA

selvitaria, A. et al (2009). The Content Validity of English Summative Test for the First Year Students at SMP N 110 South Jakarta 2007/2008 Academic Year. . Jakarta: UHAMKA.

Gaya MLA

selvitaria, Ayu. et al. "The Content Validity of English Summative Test for the First Year Students at SMP N 110 South Jakarta 2007/2008 Academic Year.". Jakarta: UHAMKA, 2009. Text.