Kyûkyoku no nihongo kuizu (quiz) : Nihon ichi muzukashii!?
Nihongo nôryokushiken taisaku : N2 bunpô mogi tesuto (test) = Exercises for The Japanese Language Proficiency Test
Sunappu shotto (snap shot) : Shashin no kagayaki
Hatarakisugi ni taorete : karôshi, karô jisatsu no kataru rôdôshi
Gender and japanese history : Religion and customs ; The body and sexuality Gender and Japanese history ; Vol. 1
Henka suru shakai no fubyôdô : Shôshi kôreika ni hisomu kakusa / Inequality in a changing society : hidden disparities behind the demographic shift in Japan
Nihon no fubyôdô o kangaeru : Shôshi kôrei shakai no kokusai hikaku / Thinking about inequality in Japan : a comparative study of ageing societies