Phan HD, Le HM. Some measures to develop mathematic problem-solving competence for high school students via topic “Quadratic inequalities with one unknown - Math 10”. Dong Thap University Journal of Science [Internet]. 2023 Jul. 30 [cited 2024 Sep. 19];12(03S):20-33. Available from: https://dthujs.vn/index.php/dthujs/article/view/1276