Famileh, M.Z., Fahim Devin, H., Reza Esmaeilzadeh, M. y Peymanizad, H. 2021. Determining the mental model of experts regarding the factors hindering the development of table tennis in Iran. Propósitos y Representaciones. 9, SPE1 (ene. 2021), e834. DOI:https://doi.org/10.20511/pyr2021.v9nSPE1.834.