ILO/SAP-FL Eradication of forced labour - General Survey concerning the Forced Labour Convention, 1930 (No. 29), and the Abolition of Forced Labour Convention
Spagnolo, John P. (ed.): Problems of the modern Middle East in historical perspective, Ithaca 1993: Cornell University Press, pp. 229-258. Ward, Steven R.
(原始内容存档于2018-12-24). Special Action Programme to Combat Forced Labour. Profits and poverty: The economics of forced labour (PDF). International Labour Organization: