Levine, Martha Peaslee (25 October 2017). "Perception of Beauty". Archived from the original on 8 October 2020. Retrieved 18 October 2020 – via www.intechopen.com.
Levine, Martha Peaslee (25 October 2017). "Perception of Beauty". Archived from the original on 8 October 2020. Retrieved 18 October 2020 – via www.intechopen.com.