Japan. Seishōnen Taisaku Honbu

• "Seishōnen no borantia katsudō ni kansuru chōsa" hōkokusho
• Ajia Taiheiyō shokoku ni okeru shōnen hikō no genjō to sono taisaku
• Chūgakusei no hahaoya
• Dai 2-kai jōhōka shakai to seishōnen ni kansuru chōsa shōsai shūkei hōkokusho
• Gendai seinen no seikatsu to kachikan
• Gendai seishōnen no hattatsu kadai ni kansuru kenkyū chōsa
• Gendai seishōnen no ishiki to kōdō no tokushitsu ni kansuru kenkyū
• Hikō genʼin ni kansuru sōgōteki chōsa kenkyū (dai 2-kai) hōkokusho
• Hikō genʼin ni kansuru sōgōteki kenkyū chōsa (dai 3-kai)
• Hikō shōnen no shakaiteki jiritsu no sogai yōin ni kansuru kenkyū chōsa
• Hikō shōnen no tachinaori ni kansuru kenkyū chōsa hōkokusho
• Hikō shōnen no yūjin kankei ni kansuru kenkyū chōsa