1. Abbott, D. (2014). Applied predictive analytics: Principles and techniques for the professional data analyst. Hoboken: Wiley.
2. Adler, A. (1927/1963). Understanding human nature. New York: Premier.
3. Adler, A. (1931/1958). What life should mean to you. New York: Capricorn.
4. Allport, G. W. (1937). Personality. New York: Holt.
5. Armitage, R., Rochlen, A., Fitch, T., Trivedi, M., & Rush, A. J. (1995). Dream recall and major depression: A preliminary report. Dreaming, 5, 189–198.