@article{NST, author = {Nguyen Anh and Nguyen Ha and Ho Dam}, title = { Developing adaptive hypermedia system based on learning design level B with rules for adaptive learning activities}, journal = {VNU Journal of Science: Natural Sciences and Technology}, volume = {25}, number = {1}, year = {2009}, keywords = {}, abstract = {Abstract }, issn = {2588-1140}, url = {https://js.vnu.edu.vn/NST/article/view/2004} }