Okazaki, Tsuneo. “Warushawa Daigaku to Nihon”. Acta Orientalia Vilnensia 6, no. 1 (January 1, 2005): Tsuneo–Okazaki 65. Accessed April 25, 2025. https://www.zurnalai.vu.lt/acta-orientalia-vilnensia/article/view/3983.