000 00284nam a2200121Ia 4500
008 230401s2017 xx 000 0 eng d
082 _a371.9
100 _aMahdi A
245 0 _aTEACHING LEARNING MATERIAL AND AIDS FOR
260 _bKANISHKA
_c2017
300 _a213
942 _2ddc
_cDED
999 _c2272
_d2272