Tolong jelaskan mengenai Lihat pula dari Kesetaraan sosial

Thorvaldur Gylfason and Gylfi Zoega Education, Social Equality and Economic Growth: A View of the Landscape CESifo Economic Studies, Vol. 49, 4/2003, 557–579

Skousen The 5000 Year Leap Pg. 115. 1981