1. Rhoda Kellogg . 1969. Analyzing children's art . National Press Books , Palo Alto , Calif. Rhoda Kellogg. 1969. Analyzing children's art. National Press Books, Palo Alto, Calif.
2. Dennis Oppenheim . 1971 . 2-Stage Transfer Drawing . Retrieved January 21, 2022 from https://www.dennisaoppenheim.org/copy-of-new-page Dennis Oppenheim. 1971. 2-Stage Transfer Drawing. Retrieved January 21, 2022 from https://www.dennisaoppenheim.org/copy-of-new-page