William O. Thweatt, Early Formulators of Say's Law, in Wood, John Cunningham (editor)· Kates, Steven (editor) (2000). Jean-Baptiste Say: Critical Assessments. V. Λονδίνο: Routledge. σελίδες 78–93.CS1 maint: Extra text: authors list (link)
Braudel, The Wheels of Commerce: Civilisation and Capitalism 15th–18th Century, 1979:181
