Gratitude and hedonic and eudaimonic well-being in Vietnam war veterans.
Gratitude and well-being: a review and theoretical integration.
A social-cognitive model of trait and state levels of gratitude.
Positive psychology progress: empirical validation of interventions.
Counting blessings in early adolescents: an experimental study of gratitude and subjective well-being.
Gratitude in intermediate affective terrain: links of grateful moods to individual differences and daily emotional experience.