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In page Khmer Rouge:

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The doctoral dissertations which were written by Hou Yuon and Khieu Samphan express basic themes that would later become the cornerstones of the policy that was adopted by Democratic Kampuchea. The central role of the peasants in national development was espoused by Hou Yuon in his 1955 thesis, The Cambodian Peasants and Their Prospects for Modernization, which challenged the conventional view that urbanization and industrialization are necessary precursors of development.[6]:63