Yusuf, Y. Q., I. A. Fata, and C. Chyntia. “Types of Indonesian-English Code-Switching Employed in a Novel”. Kasetsart Journal of Social Sciences, vol. 41, no. 1, Feb. 2018, pp. 208–213, https://so04.tci-thaijo.org/index.php/kjss/article/view/231626.