A comparison of strategic development for multiplication problem solving in low-, average-, and high-achieving students
European Journal of Psychology of Education (2014) - Comments
doi: 10.1007/s10212-013-0194-1  issn: 0256-2928  issn: 1878-5174 

Dake Zhang, Yi Ding, Dave E. Barrett, Yan Ping Xin, Ru-de Liu