Akbayır, K. And AKÇA, A. 2017. AN INVESTIGATION ON HOW MUCH THE SECONDARY SCHOOL STUDENTS LEARN THE PLACE VALUE CONCEPT IN NATURAL NUMBERS. JOURNAL OF SOCIAL AND HUMANITIES SCIENCES RESEARCH , vol.4, no.15 , 2149-2158.

Akbayır, K., & AKÇA, A., (2017). AN INVESTIGATION ON HOW MUCH THE SECONDARY SCHOOL STUDENTS LEARN THE PLACE VALUE CONCEPT IN NATURAL NUMBERS. JOURNAL OF SOCIAL AND HUMANITIES SCIENCES RESEARCH , vol.4, no.15, 2149-2158.

Akbayır, Kamil, And Aykan AKÇA. "AN INVESTIGATION ON HOW MUCH THE SECONDARY SCHOOL STUDENTS LEARN THE PLACE VALUE CONCEPT IN NATURAL NUMBERS," JOURNAL OF SOCIAL AND HUMANITIES SCIENCES RESEARCH , vol.4, no.15, 2149-2158, 2017

Akbayır, Kamil And AKÇA, Aykan. "AN INVESTIGATION ON HOW MUCH THE SECONDARY SCHOOL STUDENTS LEARN THE PLACE VALUE CONCEPT IN NATURAL NUMBERS." JOURNAL OF SOCIAL AND HUMANITIES SCIENCES RESEARCH , vol.4, no.15, pp.2149-2158, 2017

Akbayır, K. And AKÇA, A. (2017) . "AN INVESTIGATION ON HOW MUCH THE SECONDARY SCHOOL STUDENTS LEARN THE PLACE VALUE CONCEPT IN NATURAL NUMBERS." JOURNAL OF SOCIAL AND HUMANITIES SCIENCES RESEARCH , vol.4, no.15, pp.2149-2158.

@article{article, author={Kamil Akbayır And author={Aykan AKÇA}, title={AN INVESTIGATION ON HOW MUCH THE SECONDARY SCHOOL STUDENTS LEARN THE PLACE VALUE CONCEPT IN NATURAL NUMBERS}, journal={JOURNAL OF SOCIAL AND HUMANITIES SCIENCES RESEARCH}, year=2017, pages={2149-2158} }