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	1.		Cluster Analysis : Series Quantitative Applications in the Social Sciences 44 by Aldenderfer ,R.K Blashfield Publication details: London : Sage, 1984 Availability: Items available for loan: Maharagama (1)Call number: 001.42 ALD. Place hold Add to cart (remove)
	2.		Research methods in education by Cohen, Louis Manion, L Morrison, K Edition: 5th Ed.; Publication details: London : Routledge Falmer, 2000 Availability: Items available for loan: Maharagama (4)Call number: 370.72 COH, ... Place hold Add to cart (remove)
	3.		Research methods and methodologies in education by Arthur, James [Ed.] Waring, Michael [Ed.] Publication details: London: Sage, 2012 Availability: Items available for loan: Maharagama (1)Call number: 370.7 RES. Place hold Add to cart (remove)

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පුස්තකාලය, ජාතික අධ්‍යාපන ආයතනය