000 00262nam a22001217a 4500
008 180518b xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a043.3
100 _a0
101 _aSHKI-BTH
245 _aE-learning systems
_cSadriu,R
942 _2udc
_cBK
999 _c45995
_d45995