Sushant Kumar Singh, "Smith, Ricardo and Marxian view on economic origin of 'rent of land'". International education and research journal, Vol. 3 Issue 6, June 2017.[1]Archived 2018-07-13 at the Wayback Machine
Sushant Kumar Singh, "Smith, Ricardo and Marxian view on economic origin of 'rent of land'". International education and research journal, Vol. 3 Issue 6, June 2017.[1]Archived 2018-07-13 at the Wayback Machine