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020 _a-
040 _cDUET_Lib
082 _221
_a516.242/ SAT
100 _aSattar,A.
_912725
245 _aA Treatise on higher trigonometry/
_cA.Sattar.
260 _aDhaka:
_bRajab Ali Mullik,
300 _a252p.:
_billus.;
_g17cm.
650 _a1 . Trigonometry.
_912178
650 _a2 . Mathematics.
_91379
942 _2ddc
_cBK
999 _c10513
_d10513