Written Corrective Feedback is one form of improvement given from lecturer to students so that students can find errors in their writing. This research focuses on written corrective feedback used by lecturer in academic writing final assignments for fifth semester students in the English language education study program at Universitas Muhammadiyah Kotabumi. This study aims to identify the types of written corrective feedback, and find out the types that are often used by lecturer of academic writing final assignment in their corrections. researcher used a qualitative descriptive research method. the instruments used were documents and interviews. In this study, researcher analyzed 35 students writing obtained from students to analyze the types of written corrective feedback. The researcher also interviewed students to get more data related to the analysis. The results of this study indicate that lecturer used four types of written corrective feedback. of which there were 2 direct corrective feedback, 545 indirect corrective feedback, 159 focused corrective feedback and 7 unfocused corrective feedback. Of the four feedback the researcher found, lecturer were more, dominant in using indirect corrective feedback in proofreading in academic writing final assignments. Written corrective feedback provided to students can develop and motivate students' skills in writing, to revise and do their best in writing.
Keywords: Written corrective feedback, Writing course, Improve writing