Shōgaiji kyōiku naiyō no hensei to jittai ni tsuite no chōsa kenyū
Subtitle: gengo kakutoku e no enjo ni kansuru jittai chōsa
Series: Kenkyū hōkokusho -- dai 183-gō; Kenkyū hōkokusho (Saitama Kenritsu Minami Kyōiku Sentā) -- dai 183-gō.
Publisher: Saitama Kenritsu Kyōiku Sentā
Published: 1983
Place of publication: [Urawa-shi]
Language: jpn
Number of pages: 55