Hatamleh, Mahmoud Aied, Faleh Sultan Abu Eid, Abdulmunem Abutabanjeh, Ahmad Abed Alwahab Akour, and Haya Mohamad Alqatami. 2023. “The Level of Psychological Hardiness Among Volleyball and Swimming Players in Jordan: A Comparative Study”. Migration Letters 21 (2). London, UK:106-14. https://doi.org/10.59670/ml.v21i2.5854.