Cole, A., & Somerville, K. Perceived Stress: Does Positivity Matter?. https://oaks.kent.edu/node/10315
Cole, Ayanna, and Keaton Somerville. n.d. “Perceived Stress: Does Positivity Matter?”. https://oaks.kent.edu/node/10315.
Cole, A., and K. Somerville. Perceived Stress: Does Positivity Matter?. https://oaks.kent.edu/node/10315.