Takahashi, K. “The Leadership and Political Dynamics of Japan’s Political Factions Within the Conservative Party: The Cases of the Normalization of Japan-Soviet Union Relations and Japan-People’s Republic of China Relations”. Thai Journal of East Asian Studies, vol. 23, no. 1, June 2019, pp. 324-5, https://so02.tci-thaijo.org/index.php/easttu/article/view/213490.