Abdillah, S. E., and E. C. M. Simatupang. “Language Attitude in Startup Company PT Inovasi Edukasi Karya Anak Negeri: A Sociolinguistics Study”. Jurnal Sinestesia, vol. 13, no. 1, June 2023, pp. 653-6, https://www.sinestesia.pustaka.my.id/journal/article/view/383.