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	1.	No cover image available Extension education for agricultural and rural development by Chang, C. W Material type: Text Publication details: Bangkok UNFAO 1963 Availability: Items available for loan: ISID (1)Call number: 307.7207 C456.ED. Place hold
	2.	No cover image available The present status of agricultural extension development in Asia and the far east Chang, C. W. by , Material type: Text Publication details: Rome The Auth. 1960 Availability: Not available: ISID: Withdrawn (1).
	3.	No cover image available Directory of agricultural research institutes and experiment stations in Asia and the far east by Chang, C. W Material type: Text Publication details: Bangkok Food & Agriculture Organization of the United Nations 1963 Availability: Not available: ISID: Withdrawn (1).

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