Rohmawati, Anisy. Registered Student. 3213073034. 2011. Code switching used by the teacher in English teaching learning class. Thesis. English Education Program, State Islamic College (STAIN) Tulungagung. Advisor: Hj. Elfi Muawanah, S.AG. M.Pd and Nurul Chojimah, M.Pd. Key Words: Code switching This study was designed to know how far the important using dual language in teaching learniā¦