Sujito, Sujito, and Wildan Mahir Mauttagien. 2016. “APPLICATION OF COLLABORATIVE PROBLEM-BASED LEARNING TO IMPROVE THE QUALITY OF TEACHING AND LEARNING ON APPLIED LINGUISTICS”. IJOTL-TL: Indonesian Journal of Language Teaching and Linguistics 1 (3), 193-202. https://doi.org/10.30957/ijoltl.v1i3.184.