%0 Journal Article %A Frackowiak, Tomasz %A Oleszkiewicz, Anna %A Butovskaya, Marina %A Groyecka, Agata %A Karwowski, Maciej %A Kowal, Marta %A Sorokowski, Piotr %D 2020 %J Frontiers in Psychology %T Subjective Happiness Among Polish and Hadza People %V 11