ÇELİK, D. And GÜNEŞ, G. 2008. Different Grade Turkish Students’ Levels of Using Algebraic Letters. Comparative Education Society in Europe XXIII Conference , (Atina, Greece).

ÇELİK, D., & GÜNEŞ, G., (2008). Different Grade Turkish Students’ Levels of Using Algebraic Letters . Comparative Education Society in Europe XXIII Conference, Atina, Greece

ÇELİK, DERYA, And GÖNÜL GÜNEŞ. "Different Grade Turkish Students’ Levels of Using Algebraic Letters," Comparative Education Society in Europe XXIII Conference, Atina, Greece, 2008

ÇELİK, DERYA And GÜNEŞ, GÖNÜL. "Different Grade Turkish Students’ Levels of Using Algebraic Letters." Comparative Education Society in Europe XXIII Conference , Atina, Greece, 2008

ÇELİK, D. And GÜNEŞ, G. (2008) . "Different Grade Turkish Students’ Levels of Using Algebraic Letters." Comparative Education Society in Europe XXIII Conference , Atina, Greece.

@conferencepaper{conferencepaper, author={DERYA ÇELİK And author={GÖNÜL GÜNEŞ}, title={Different Grade Turkish Students’ Levels of Using Algebraic Letters}, congress name={Comparative Education Society in Europe XXIII Conference}, city={Atina}, country={Greece}, year={2008}}