Sukarni, Emalia Iragiliati, Dwi Winarni, and Yuliana Tri Nirmayanti. 2015. “IMPROVING TEACHERS’ PROFESSIONALISM THROUGH MATERIALS DEVELOPMENT, INFORMATION TECHNOLOGY AND CLASSROOM ACTION RESEARCH”. TEFLIN Journal 20 (2):212-31. https://doi.org/10.15639/teflinjournal.v20i2/212-231.