BLAHO, Michal et al. Preferred Information Sources and the Quality of online Sources for Programming Courses. In Recent Advances in Educational Methods : 10th International Conference on Engineering Education (EDUCATION´13); 1st International Conference on Early Childhood Education (ECED´13). Cambridge, UK, 20.-22. 2. 2013. [s.l.] : WSEAS Press, 2013, s.77-80. ISBN 978-1-61804-163-0. E*61/URPI/2013