Subramanian, Bala R, Munish Thakur, and Gloryson Chalil. “The Definition and Similar Constructs of Gratitude: A Critical Review”. Psychology Hub 39, no. 3 (December 20, 2022): 33–42. Accessed March 29, 2024. https://rosa.uniroma1.it/rosa04/psychology_hub/article/view/17922.