Dōtoku LHR no jikan ni okeru dōwa kyōiku no susumekata ni kansuru chōsa kenkyū
Series: Kenkyū hōkokusho -- dai 209-gō; Kenkyū hōkokusho (Saitama Kenritsu Minami Kyōiku Sentā) -- dai 209-gō.
Publisher: Saitama Kenritsu Minami Kyōiku Sentā
Published: 1988
Place of publication: [Urawa-shi]
Language: jpn
Number of pages: 29