000 00302nam a2200121Ia 4500
005 20240713150649.0
008 240712s9999 xx 000 0 und d
041 _aeng
100 _aPathak, r.p.
245 _aMethodology of educational research
260 _aNew Delhi
_b Atlantic
_c2018
300 _a187
999 _c30478
_d30478