Cordola Hsu, A. R., S. Nguyen-Rodriguez, and D. Spruijt-Metz. “Age, Physical Activity Motivation and Perceived Stress in Minority Girls”. Californian Journal of Health Promotion, Vol. 17, no. 2, Dec. 2019, pp. 1-12, doi:10.32398/cjhp.v17i2.2285.