Relationship between Religious Attitude, Optimism, Spiritual Intelligence and Mental Hygiene of Post-Graduate Students of Islamic Azad University Tehran Science and Research Branch. Mediterr. J. Soc. Sci. [Internet]. 2015 Nov. 3 [cited 2024 Nov. 22];6(6 S1):208. Available from: https://www.richtmann.org/journal/index.php/mjss/article/view/8009