1. Funabiki, N., Tana, Zaw, K.K., Ishihara, N., Kao, W.-C.: A graph-based blank element selection algorithm for fill-in-blank problems in Java programming learning assistant system. IAENG Int. J. Comput. Sci. 44(2), 247–260 (2017)
2. Funabiki, N., Matsushima, Y., Nakanishi, T., Amano, N.: A Java programming learning assistant system using test-driven development method. Int. J. Comput. Sci. 40(1), 38–46 (2013)
3. Zaw, K.K., Funabiki, N., Kao, W.-C.: A proposal of value trace problem for algorithm code reading in Java programming learning assistant system. Inf. Eng. Express. 1(3), 9–18 (2015)
4. Ishihara, N., Funabiki, N., Kao, W.-C.: A proposal of statement fill-in-blank problem using program dependence graph in Java programming learning assistant system. Inf. Eng. Express. 1(3), 19–28 (2015)
5. Ishihara, N., Funabiki, N., Kuribayashi, M., Kao, W.-C.: A software architecture for Java programming learning assistant system. Int. J. Comput. Soft. Eng. 2(1) (2017)