1. Transpersonal Psychologyhttps://dictionary.apa.org/transpersonal-psychology
2. Humanistic Psychologyhttps://dictionary.apa.org/humanistic-psychology
3. Egohttps://dictionary.apa.org/ego
4. Notes on Spiritual Discourses of Srīātmānanda,2009
5. A Secure Base: Parent-Child Attachment and Healthy Human Development;Bowlby,1988