Litchke, L. ., Liu, T. ., & Castro, S. . (1969). Effects of Multimodal Mandala Yoga on Social and Emotional Skills for Youth with Autism Spectrum Disorder: An Exploratory Study. International Journal of Yoga, 11(1), 59-65. https://doi.org/10.4103/ijoy.IJOY_80_16 (Original work published 1969)