Sydsaeter Knut. (1995). Mathematic for Economic Analysis. Person.
Lua i Stíl Chicago (17ú heag.)Sydsaeter Knut. Mathematic for Economic Analysis. New Delhi: Person, 1995.
Lua MLA (9ú heag.)Sydsaeter Knut. Mathematic for Economic Analysis. Person, 1995.
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