000 00277nam a2200121Ia 4500
008 190415s9999 xx 000 0 und d
082 _aRU.0020
100 _aUpadhyay, S.N.
245 0 _aStudent satisfactions in classrooms
260 _c1978
300 _a105p.
942 _cBK
999 _c20891
_d20891