Kawakubo, Atsushi, Fred Bryant, Erika Miyakawa, and Takashi Oguchi. “Development and Validation of the Japanese Version of the Savoring Beliefs Inventory (SBI-J)”. Journal of Positive Psychology and Wellbeing (February 7, 2019): 1-21. Accessed February 19, 2019. http://journalppw.com/index.php/JPPW/article/view/115.