Ayvacı H Şevki, Bebek G. The Effect of STEM-Based Activity Designed for Gifted Students on Students’ Scientific Creativity and Cognitive Achievement. PERR [Internet]. 2023 Aug. 10 [cited 2026 Mar. 4];12(2):422-41. Available from: https://www.perrjournal.com/index.php/perrjournal/article/view/519