Managerial economics : economics tools for today's decision makers / Paul G. Keat ; Philip K.Y. Young. (2002). Upper Saddle River, NJ: Prentice-Hall, c.
Managerial economics : economics tools for today's decision makers / Paul G. Keat ; Philip K.Y. Young. 3rd ed.. Upper Saddle River, NJ: Prentice-Hall, c, 2002. Buku Umum.