Ngo Minh Duc. “A STUDY OF DESIGNING E-LEARNING LESSONS TO SUPPORT THE FLIPPED CLASSROOM THROUGH ‘CHAPTER 5: HALOGEN GROUPS’ TO DEVELOP THE 10th GRADE STUDENTS’ COMPETENCE”. UED Journal of Social Sciences, Humanities and Education 7, no. 1 (March 28, 2017): 102-108. Accessed May 20, 2024. https://jshe.vn/index.php/jshe/article/view/754.