Chieko Matsuyama Toyoshiro Nakashima Naohiro Ishii Hidenori Itoh Development of Teaching Material on the Web for Programming Course and its Evaluation. 212-219 2005 conf/sera/2005 SERA http://doi.ieeecomputersociety.org/10.1109/SERA.2005.36 db/conf/sera/sera2005.html#MatsuyamaNII05