Furman A. V. : Effect of some characteristics of the problem situation on development of thinking in schoolchildren 85'2 p.68
Tishchenko S. P. , Fourman A. V. :
Scientific heritage of A. S. Makarenko and psychology of personality development (in Russian)
88'3 p.165
Furman A. V. :
Levels of problem-solving by students
89'3 p.43