keat, p. g., & Thomas, C. R. (1992). managerial economics: Economic tools for today's decision makers. macmillan publishing company.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিkeat, paul g., এবং Christopher R. Thomas. Managerial Economics: Economic Tools for Today's Decision Makers. new york: macmillan publishing company, 1992.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিkeat, paul g., এবং Christopher R. Thomas. Managerial Economics: Economic Tools for Today's Decision Makers. macmillan publishing company, 1992.