Sheldon, K. (2019). Understanding the personality facets of Grit. https://oaks.kent.edu/node/7973
Sheldon, Katie. 2019. “Understanding the Personality Facets of Grit”. https://oaks.kent.edu/node/7973.
Sheldon, K. Understanding the Personality Facets of Grit. 9 Apr. 2019, https://oaks.kent.edu/node/7973.