Gaya APA

sahertian, T. et al (2011). The effectiveness of using picture to develop student's vocabulary mastery for the 7th grade student of SMPN 150 east Jakarta in academic year 2010 – 2011 . Jakarta: fkip uhamka.

Gaya MLA

sahertian, Tiara. et al. "The effectiveness of using picture to develop student's vocabulary mastery for the 7th grade student of SMPN 150 east Jakarta in academic year 2010 – 2011". Jakarta: fkip uhamka, 2011. Text.