Saeki, Yutaka1939 · 12 obras en el catálogoObrasRRikai to wa nani kaRikai to wa nani kaIIwanami kōza gendai no kyōikuIwanami kōza gendai no kyōikuNNinchi katei kenkyūNinchi katei kenkyūAAkutibu maindoAkutibu maindoGGakkō no saisei o mezashiteGakkō no saisei o mezashiteMManabiau kyōdōtaiManabiau kyōdōtaiGGakuryoku to shikōGakuryoku to shikō""Kimekata" no ronri"Kimekata" no ronriKKonpyūta to kyōikuKonpyūta to kyōikuMManabi no kōzoriManabi no kōzoriNNinchi kagaku no hoho (Ninchi kagaku sensho)Ninchi kagaku no hoho (Ninchi kagaku sensho)""Wakaru" to iu koto no imi"Wakaru" to iu koto no imi