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	1.	No cover image available Measurement of understanding in physics by Nigam, D.S Material type: Text Publication details: Delhi Central Institute of Education 1959 Availability: Items available for loan: Library and Documentation Division NCERT (1). Place hold Add to cart (remove)
	2.	No cover image available Developement of individual school improvement plans by Nigam, D.S Material type: Text Publication details: 0 Availability: Items available for loan: Library and Documentation Division NCERT (1). Place hold Add to cart (remove)
	3.	No cover image available Vigyan shikshan (HIN) by Nigam, D. S Material type: Text Publication details: Chandigarh Haryana Hindi Granth Academy 1975 Availability: Items available for loan: Library and Documentation Division NCERT (1). Place hold Add to cart (remove)
	4.	No cover image available Vernier scale teaching by method of discovery by Nigam,D.S Material type: Text Publication details: Bhubaneswar National Council of Educational Research and Training(NCERT) 1971 Availability: Items available for loan: Library and Documentation Division NCERT (1). Place hold Add to cart (remove)
	5.	No cover image available Development of individual school improvement plans by Nigam, D.S Material type: Text Publication details: New Delhi National Council of Educational Research & Training 1969 Availability: Items available for loan: Library and Documentation Division NCERT (1). Place hold Add to cart (remove)

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