-
1
-
2
-
3
-
4Almmustuhtton 1998Fáttát “...Mathematics Study and teaching Psychological aspects....”
Girji -
5Dahkki Brush, Lorelei R., 1946-Fáttát “...Mathematics Study and teaching (Secondary) United States Psychological aspects....”
Almmustuhtton 1980
Girji