Maria SetteLixin TaoNing JiangA Knowledge-Driven Web Tutoring System Framework for Adaptive and Assessment-Driven Open-Source Learning.712-7172017COMPSAC (2)https://doi.org/10.1109/COMPSAC.2017.19https://doi.ieeecomputersociety.org/10.1109/COMPSAC.2017.19conf/compsac/2017-2db/conf/compsac/compsac2017-2.html#SetteTJ17