Nguyen The Dung. REFRESHER TRAINING FOR TEACHERS IN THE FORM OF B-LEARNING TO IMPROVE THEIR COMPETENCE OF USING INFORMATION TECHNOLOGY IN TEACHING - A CASE STUDY. jshe [Internet]. 2017Dec.30 [cited 2024Dec.22];7(4):31-6. Available from: https://jshe.vn/index.php/jshe/article/view/802