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Bruinsma، Yvonne؛ Koegel، Robert L.؛ Koegel، Lynn Kern (2004). "Joint attention and children with autism: A review of the literature". Mental Retardation and Developmental Disabilities Research Reviews. ج. 10 ع. 3: 169–175. DOI:10.1002/mrdd.20036. ISSN:1080-4013. PMID:15611988.
Bruinsma، Yvonne؛ Koegel، Robert L.؛ Koegel، Lynn Kern (2004). "Joint attention and children with autism: A review of the literature". Mental Retardation and Developmental Disabilities Research Reviews. ج. 10 ع. 3: 169–175. DOI:10.1002/mrdd.20036. ISSN:1080-4013. PMID:15611988.
Price.، Tracy, Jessica L. Robins, Richard W. Tangney, June (2007). The self-conscious emotions : theory and research. Guilford Press. ISBN:9781593854867. OCLC:123029833.{{استشهاد بكتاب}}: صيانة الاستشهاد: أسماء متعددة: قائمة المؤلفين (link)