A Study on Changing Hidaya's Business Strategy-Focusing on the Entrepreneurial Activities of Masayasu Kyubei the Third-. Sapporo University Women's Junior College Journal. 2004. No.43
A Study on the Entrepreneurial Activities of Hidaya during the Tokugawa Period: Focusing on the Relations with the Suhara Family. Sapporo University Women's Junior College Journal. 2002. No. 39