Totsune, Tomoko http://orcid.org/0000-0002-7352-4054
Matsudaira, Izumi http://orcid.org/0000-0001-6842-9522
Taki, Yasuyuki
Article History
Received: 27 August 2020
Accepted: 29 January 2021
First Online: 12 March 2021
Competing interests
: This work was funded by Club Tourism International Inc.