Inten, I. G. A., N. N. D. Ariyaningsih, and I. M. I. I. Jendra. “The Analysis of Code Switching Found in Padang Bulan Novel by Andrea Hirata”. Journal of Language and Applied Linguistics, vol. 1, no. 1, Jan. 2020, pp. 1-7, https://traverse.asia/index.php/traverse/article/view/13.