Huan, E.; Haan, J.; Bora, D.; Fernandez, S.; Bera, L. 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. AJES 2021, 5, 39-45.