Epidemiological Studies on the Morinaga Powdered Milk Poisoning Incident 論文 Masahiko Ohira・Hideyasu Aoyama ·1972-01-01 ·『Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene)』 27(6) pp. 500-531 doi:10.1265/jjh.27.500
Colonization and Plantation Management of Daito Islands 論文 Akitoshi Hiraoka ·1977-01-01 ·『Japanese Journal of Human Geography』 29(3) pp. 227-252 doi:10.4200/jjhg1948.29.227