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Gómez، Ángel؛ López-Rodríguez، Lucía؛ Sheikh، Hammad؛ Ginges، Jeremy؛ Wilson، Lydia؛ Waziri، Hoshang؛ Vázquez، Alexandra؛ Davis، Richard؛ Atran، Scott (2017). "The devoted actor's will to fight and the spiritual dimension of human conflict". Nature Human Behaviour. ج. 1 ع. 9: 673–679. DOI:10.1038/s41562-017-0193-3. PMID:31024146. S2CID:46825422.
Baron، Jonathan؛ Spranca، Mark (1997). "Protected values". Organizational Behavior and Human Decision Processes. ج. 70 ع. 1: 1–16. DOI:10.1006/obhd.1997.2690. PMID:9236161.
Gómez، Ángel؛ López-Rodríguez، Lucía؛ Sheikh، Hammad؛ Ginges، Jeremy؛ Wilson، Lydia؛ Waziri، Hoshang؛ Vázquez، Alexandra؛ Davis، Richard؛ Atran، Scott (2017). "The devoted actor's will to fight and the spiritual dimension of human conflict". Nature Human Behaviour. ج. 1 ع. 9: 673–679. DOI:10.1038/s41562-017-0193-3. PMID:31024146. S2CID:46825422.