Soybaş, D. And Sevgi, S. Investigation of Prospective Elementary Teachers' Opinions about Problem Concept. 2020. In Mathematical Analysis II–Optimisation, Differential Equations and Graph Theory , Springer, London/Berlin , Singapore, 249-261.

Soybaş, D., & Sevgi, S., (2020). Investigation of Prospective Elementary Teachers' Opinions about Problem Concept. Mathematical Analysis II–Optimisation, Differential Equations and Graph Theory (pp.249-261), Singapore: Springer, London/Berlin .

Soybaş, DANYAL, And SEVİM SEVGİ. "Investigation of Prospective Elementary Teachers' Opinions about Problem Concept." In Mathematical Analysis II–Optimisation, Differential Equations and Graph Theory , 249-261. Singapore: Springer, London/Berlin , 2020

Soybaş, DANYAL And Sevgi, SEVİM. "Investigation of Prospective Elementary Teachers' Opinions about Problem Concept." Mathematical Analysis II–Optimisation, Differential Equations and Graph Theory , Springer, London/Berlin , 2020, pp.249-261.

Soybaş, D. And Sevgi, S. (2020) "Investigation of Prospective Elementary Teachers' Opinions about Problem Concept", Mathematical Analysis II–Optimisation, Differential Equations and Graph Theory . Singapore: Springer, London/Berlin .

@bookchapter{bookchapter, author ={DANYAL SOYBAŞ And author ={SEVİM SEVGİ}, chaptertitle={Investigation of Prospective Elementary Teachers' Opinions about Problem Concept}, booktitle={ Mathematical Analysis II–Optimisation, Differential Equations and Graph Theory}, publisher={Springer, London/Berlin }, city={Singapore},year={2020} }