Maulida, H. and Norliani, N. 2017. INCREASING STUDENTS’ LEARNING ACTIVITY IN MEDIA AND LEARNING RESOURCES CLASS BY USING NUMBER HEADS TOGETHER (NHT) ( A CLASSROOM ACTION RESEARCH). LET: Linguistics, Literature and English Teaching Journal. 6, 2 (Jun. 2017). DOI:https://doi.org/10.18592/let.v6i2.1458.