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�. จงหาปริมาตร��ง�รง�ระ�����ห���ง���ม�ร��ม���ง�า� �.� �ิ�ว และ��ง � �ิ�ว
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108 คณิตศาสตร์ ระดับมัธยมศึกษาตอนต้น : พค21001
ส�ำนักงำน กศน.จังหวัดกำฬสินธุ์

