國立臺灣師範大學資訊教育研究所Lin, S. C.Chang, R. B.Chen, S. W.Chang, K. E.2014-10-302014-10-302000-05-29http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/34419The effect of learning achievement using computer-supported concept mapping with relation-free or fixed