KKōteieki mondai / ̂̂Kōteieki mondai / ̂̂de Katsuya YaguchiEdiciones (1)Kōteieki mondai / ̂̂ (2010)Kokuritsu Kokkai Toshokan Chōsa oyobi Rippō Kōsakyoku · japonésMás obras de Katsuya YaguchiSShokuryō wa ikani shite buki to natta kaShokuryō wa ikani shite buki to natta ka""Nōgyō nōsei kaikaku" no kadai"Nōgyō nōsei kaikaku" no kadaiKKome jiyūka mondai to nōgyō kōzō kaikakuKome jiyūka mondai to nōgyō kōzō kaikaku