Zeren Özer, D. And Güngör, S. N. Free-Choice Informal Learning Environments in Science Education: The Case of Turkey. 2011. In The Science and Education at the Beginning of the 21st Century in Turkey , St. Kliment Ohridski University Press, Sofija, 403-411.

Zeren Özer, D., & Güngör, S. N., (2011). Free-Choice Informal Learning Environments in Science Education: The Case of Turkey. The Science and Education at the Beginning of the 21st Century in Turkey (pp.403-411), Sofija: St. Kliment Ohridski University Press.

Zeren Özer, DİLEK, And SEMA NUR GÜNGÖR. "Free-Choice Informal Learning Environments in Science Education: The Case of Turkey." In The Science and Education at the Beginning of the 21st Century in Turkey , 403-411. Sofija: St. Kliment Ohridski University Press, 2011

Zeren Özer, DİLEK Z. And Güngör, SEMA N. . "Free-Choice Informal Learning Environments in Science Education: The Case of Turkey." The Science and Education at the Beginning of the 21st Century in Turkey , St. Kliment Ohridski University Press, 2011, pp.403-411.

Zeren Özer, D. And Güngör, S. N. (2011) "Free-Choice Informal Learning Environments in Science Education: The Case of Turkey", The Science and Education at the Beginning of the 21st Century in Turkey . Sofija: St. Kliment Ohridski University Press.

@bookchapter{bookchapter, author ={DİLEK ZEREN ÖZER And author ={SEMA NUR GÜNGÖR}, chaptertitle={Free-Choice Informal Learning Environments in Science Education: The Case of Turkey}, booktitle={ The Science and Education at the Beginning of the 21st Century in Turkey}, publisher={St. Kliment Ohridski University Press}, city={Sofija},year={2011} }