Hanna, Samia, and Mahyuni Mahyuni. 2019. “An Analysis of Code Switching Used by English Teachers in Teaching and Learning Process (A Case Study At SMPN 14 Mataram)”. Jurnal Ilmiah Pendidikan Indonesia 1 (2):162-68. https://jipi.unram.ac.id/index.php/jipi/article/view/23.