Nguyen Thanh Hai, Nguyen Hai Nam and Quach Nguyen Bao Nguyen 2018. TEACHING AND LEARNING PHYSICS IN THE ORIENTATION OF COMPETENCE DEVELOPMENT IN SECONDARY SCHOOLS - DIFFICULTIES, CHALLENGES AND VIEWS ON SOLUTIONS. UED Journal of Social Sciences, Humanities and Education. 8, 3B (Aug. 2018), 26-33. DOI:https://doi.org/10.47393/jshe.v8i3B.719.