Damanik, Novi Kristina Sari, Dea Adinda, Jesse Abigail Silaban, and Cristabel Nathania Br Sembiring. 2024. “Analysis of the Use of Standard and Non-Standard Indonesian in Formal And Informal Communication”. International Journal of Students Education 3 (1):441-44. https://journal.berpusi.co.id/index.php/IJoSE/article/view/1112.