1. A natural history of the senses;Ackerman,1990
2. Temperament and the Big Five factors of personality;Angleitner,1994
3. Attachment: Attachment and loss;Bowlby,1969
4. Temperament: Early developing personality traits;Buss,1984
5. The temperament and character inventory (TCI): A guide to its development and use;Cloninger,1994