Taketani, F., Kobayashi, N., Shirasaka, S., & Toma, T. (2019). Proposal of Visualising Model of Customer Demands Sufficiency Degree in Designing Private Life Insurance. Proceedings of the 61st Annual Meeting of the ISSS - 2017 Vienna, Austria, 2017(1). Retrieved from https://journals.isss.org/index.php/proceedings61st/article/view/3233