Lê Thái, H., Nguyễn Thị, P.V. and Hà Vũ, H. 2021. THE EFFECTIVENESS OF BLENDED LEARNING ACTIVITIES AT HIGHER EDUCATION: EXPERIENCES FROM VNU – UNIVERSITY OF EDUCATION. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY. 7, 23 (Dec. 2021). DOI:https://doi.org/10.51453/2354-1431/2021/558.