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Stillman, Tyler F.; Baumeister, Roy F.; Lambert, Nathaniel M.; Crescioni, A. Will; DeWall, C. Nathan; Fincham, Frank D. (2009). "Alone and without purpose: Life loses meaning following social exclusion". Journal of Experimental Social Psychology (به انگلیسی). Elsevier BV. 45 (4). doi:10.1016/j.jesp.2009.03.007. ISSN0022-1031.
Stillman, Tyler F.; Baumeister, Roy F.; Lambert, Nathaniel M.; Crescioni, A. Will; DeWall, C. Nathan; Fincham, Frank D. (2009). "Alone and without purpose: Life loses meaning following social exclusion". Journal of Experimental Social Psychology (به انگلیسی). Elsevier BV. 45 (4). doi:10.1016/j.jesp.2009.03.007. ISSN0022-1031.