000 00461nam a22001697a 4500
003 LDD
005 20251212060340.0
008 251212b |||||||| |||| 00| 0 eng d
022 _a0021-8251
040 _aLDD
245 _aJournal for Research in Mathematics Education
260 _aU.S.A
_bNational Council fo Teachers of Mathmatics
_c2018
300 _aVol. 49 No. (1-4)
310 _aBi-Monthly
650 _2Mathematics ,Education
942 _2ddc
_cJ
999 _c200426
_d200426