Ataş, A. H. And Çelik, B. A Systematic Design Model for Gamified Learning Environments: GELD Model. 2018. In Design, Motivation, and Frameworks in Game-Based Learning , Global Publications , Pennsylvania, 30-57.

Ataş, A. H., & Çelik, B., (2018). A Systematic Design Model for Gamified Learning Environments: GELD Model. Design, Motivation, and Frameworks in Game-Based Learning (pp.30-57), Pennsylvania: Global Publications .

Ataş, AMİNE, And Berkan Çelik. "A Systematic Design Model for Gamified Learning Environments: GELD Model." In Design, Motivation, and Frameworks in Game-Based Learning , 30-57. Pennsylvania: Global Publications , 2018

Ataş, AMİNE H. And Çelik, Berkan. "A Systematic Design Model for Gamified Learning Environments: GELD Model." Design, Motivation, and Frameworks in Game-Based Learning , Global Publications , 2018, pp.30-57.

Ataş, A. H. And Çelik, B. (2018) "A Systematic Design Model for Gamified Learning Environments: GELD Model", Design, Motivation, and Frameworks in Game-Based Learning . Pennsylvania: Global Publications .

@bookchapter{bookchapter, author ={AMİNE HATUN ATAŞ And author ={Berkan Çelik}, chaptertitle={A Systematic Design Model for Gamified Learning Environments: GELD Model}, booktitle={ Design, Motivation, and Frameworks in Game-Based Learning}, publisher={Global Publications }, city={Pennsylvania},year={2018} }