1.
Pham Thi Hien. Factors affecting the quality of middle-level management personnel at Vietnam Coal and Mineral Industry Group. IJCISIM [Internet]. 2026 Aug. 28 [cited 2026 Aug. 29];18(20s):829-42. Available from: https://cspub-ijcisim.org/index.php/ijcisim/article/view/5227