Sunubi, Abdul Haris, et al. “ENGLISH TEACHER INSTRUCTION IN GIVING MATERIAL BY USING CODE SWITCHING AND CODE MIXING IN SMU NEG.2 PAREPARE”. KURIOSITAS: Media Komunikasi Sosial Dan Keagamaan, vol. 9, no. 1, June 2013, pp. 35-47, doi:10.35905/kur.v9i1.201.