Robbins, S. P., & Coulter, M. (2002). Management (7th ed.). Pearson Education/ prentice Hall.

Robbins, Stephen P., and Mary Coulter. Management. 7th ed. India: Pearson Education/ prentice Hall, 2002.

Robbins, Stephen P., and Mary Coulter. Management. 7th ed. Pearson Education/ prentice Hall, 2002.