1. 1) Okamoto, T., Society for the Research of Port Towns in Japan :Minatomachi no Kindai−Moji, Otaru, Yokohama and Hakodate (Modern Port Towns − Moji, Otaru, Yokohama and Hakodate), Gakugei Shuppansha Co., Ltd., pp.17-52, 2008.4.30 (in Japanese) 岡本哲志, 日本の港町研究会:港町の近代−門司・小樽・横浜・函館を読む, 学芸出版社, pp.17-52, 2008.4.30
2. 2) Matsuura, S. : Meiji no Kokudokaihatsu Shi−Kindai Dobokugijutsu no Ishizue (History of Land Development in the Meiji Era― Foundation of Modern Civil Engineering Technology), Kajima Institute Publishing Co., Ltd., 1992.3.10 (in Japanese) 松浦茂樹:明治の国土開発史−近代土木技術の礎, 鹿島出版会, 1992.3.10
3. 3) Inayoshi, A. : Kaiko no Seiji Shi (Seaport Political History), The University of Nagoya Press, 2014.11.25 (in Japanese) 稲吉晃:海港の政治史, 名古屋大学出版, 2014.11.25
4. 4) Hiroi, I. : Nihon Chikko shi (History of Port Construction in Japan), Maruzen Co., Ltd., pp.21-104, 1927.5.22 (in Japanese) 廣井勇:日本築港史, 丸善株式会社, pp.21-104, 1927.5.22
5. 5) Iwamoto, K., Hein, C.:The role of Dutch civil engineering in modern port planning in Japan (1870s–1890s), Planning Perspectives, Vol.36, No.3, pp.617-629, 2021.4 [https://doi.org/10.1080/02665433.2021.1906308 ]