Suminta, Rini Risnawita, and Akhmad Hasan Saleh. “Conceptualization of Gratitude : Qualitative and Quantitative Approach”. Happiness: Journal of Psychology and Islamic Science 5, no. 1 (June 30, 2021): 1–17. Accessed July 3, 2024. https://jurnalfuda.iainkediri.ac.id/index.php/happiness/article/view/372.