Kagan, Jerome; J. Steven Reznick; Nancy Snidman; Jane Gibbons; Maureen O. Johnson (December 1988). "Childhood Derivatives of Inhibition and Lack of Inhibition to the Unfamiliar". Child Development. 59 (6). Blackwell Publishing: 1580–1589. doi:10.2307/1130672. JSTOR1130672. PMID3208569.
Kagan, Jerome; J. Steven Reznick; Nancy Snidman; Jane Gibbons; Maureen O. Johnson (December 1988). "Childhood Derivatives of Inhibition and Lack of Inhibition to the Unfamiliar". Child Development. 59 (6). Blackwell Publishing: 1580–1589. doi:10.2307/1130672. JSTOR1130672. PMID3208569.
nih.gov
pubmed.ncbi.nlm.nih.gov
Kagan, Jerome; J. Steven Reznick; Nancy Snidman; Jane Gibbons; Maureen O. Johnson (December 1988). "Childhood Derivatives of Inhibition and Lack of Inhibition to the Unfamiliar". Child Development. 59 (6). Blackwell Publishing: 1580–1589. doi:10.2307/1130672. JSTOR1130672. PMID3208569.