Santy Christinawati, and Wahyu Trimastuti. 2021. “The Use of Modal Auxiliary Verbs in Covid -19 News: An Analysis of Selected News in Digital Newspaper ”. Jurnal Sastra - Studi Ilmiah Sastra 11 (2), 25-33. http://45.118.112.109/ojspasim/index.php/sastra/article/view/248.