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	1.	The effect of sign language on picture naming in two retarded girls possessing normal hearing. [electronic resource] by Kotkin, R A Simpson, S B Desanto, D Producer: 19781027 In: Journal of mental deficiency research vol. 22 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Psychosocial treatment strategies in the MTA study: rationale, methods, and critical issues in design and implementation. [electronic resource] by Wells, K C Pelham, W E Kotkin, R A Hoza, B Abikoff, H B Abramowitz, A Arnold, L E Cantwell, D P Conners, C K Del Carmen, R Elliott, G Greenhill, L L Hechtman, L Hibbs, E Hinshaw, S P Jensen, P S March, J S Swanson, J M Schiller, E Producer: 20010531 In: Journal of abnormal child psychology vol. 28 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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