The prevalence of additional problems among mentally retarded pupils as compared to mentally normal pupils
Richard Haugen Artikkel Engelsk
*0011474672 *008820426s1981 xx# 000 0 eng *019 $bk *08230$a371.9 *100 $aHaugen, Richard$_99417000 *245 $aThe prevalence of additional problems among mentally retarded pupils as compared to mentally normal pupils *300 $aS.189-200 *773 $tScandinavian journal of educational research$gVol.25, no. 4 (1981)$x0031-3831$w(NO-LaBS)298121(tnr) *8564 $uhttps://doi.org/10.1080/0031383810250403 *999 $z8200042557$anorart:8200042557 ^