1989'3, p.94
Shodiev H.
Psychological reasons of Uzbeck schoolchildren's errors in Russian spelling

As a result of teaching programmes, and text books, analysis and of observation of punctuation skills forming process it was discovered that teaching Russian to Uzbeck schoolchildren was based upon easily grasped separate signs-''reference-points" - conjunctions and similar grammatical forms. It was stated that such a method was psychological reason of Uzbeck schoolchildren's punctuation errors and was not resulting in purposeful forming of grammatical skills.