About this article
Published Online: Sep 02, 2020
Page range: 12 - 28
DOI: https://doi.org/10.2478/subboec-2020-0007
Keywords
© 2020 Yasuhito Tanaka, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Tanaka, Yasuhito
Doshisha UniversityJapan