GRAMMATICAL ERRORS IN WRITING UNDERGRADUATE THESIS PROPOSAL: A STUDY CASE ON THE LAST SEMESTER STUDENTS OF ENGLISH STUDY PROGRAM OF NUSA CENDANA UNIVERSITY IN THE ACADEMIC YEAR 2020-2021 - Huan, Elisna; Haan, John; Bora, Dewi; Fernandez, Sebastianus; Bera, Laurensius (Academic Journal of Educational Sciences, 2021)