Efendi, Muhammad, Ariani, Musli, AND Sundari, Siti. " THE EFFECT OF USING STAD TECHNIQUE ON THE SEVENTH GRADE STUDENTS’ TENSE ACHIEVEMENT IN WRITING SENTENCE AT SMPN 3 BALUNG IN THE 2011/2012 ACADEMIC YEAR" Pancaran Pendidikan [Online], Volume 2 Number 3 (1 August 2013)