Gaya APA

Warmoko, . (2014). Improving students' vocabulary by using contextual teaching and learning (A Clasrooom action research conducted for the first graders of SMP N 1 Sedayu in the 2014/2015 academic year) . Yogyakarta: FKIP.

Gaya MLA

Warmoko, . "Improving students' vocabulary by using contextual teaching and learning (A Clasrooom action research conducted for the first graders of SMP N 1 Sedayu in the 2014/2015 academic year)". Yogyakarta: FKIP, 2014. Text.