Osborne, pp. 124 Chronologie du Cambodge de 1960 à 1990 Chandler, David P., Revising the Past in Democratic Kampuchea: When Was the Birthday of the Party?: Notes and Comments, in Pacific Affairs, Vol.
Truy cập ngày 4 tháng 2 năm 2011.  ^ Osborne, pp. 124 ^ Chronologie du Cambodge de 1960 à 1990 ^ Chandler, David P., Revising the Past in Democratic Kampuchea: When Was the Birthday of the Party?: Notes and Comments, in Pacific Affairs, Vol.