000 00569nam a2200193Ia 4500
005 20250508155847.0
008 008 250505s9999 xx 000 0 eng d
037 _aDissertations
040 _aFEDL
_beng
_cFEDL
041 _aeng
_2eng
084 _a371.335 2, NIG/DI
_qFEDL
100 _aNigam S N
_9767711
245 0 _aExperimental study of the effectiveness of instructional films
260 _c1964
300 _a84p.
546 _aM. Ed. Dissertation (Delhi University)
942 _cDIS
_h371.335 2, NIG/DI
999 _c1359690
_d1359690