Famileh MZ, Fahim Devin H, Reza Esmaeilzadeh M, Peymanizad H. Determining the mental model of experts regarding the factors hindering the development of table tennis in Iran. Propós. represent. [Internet]. 2021 Jan. 11 [cited 2024 Jul. 3];9(SPE1):e834. Available from: https://revistas.usil.edu.pe/index.php/pyr/article/view/834