Whittington, R., & Pany, K. (2001). Principles of auditing and other assurance services (13th ed.). Irwin/McGraw-Hill.

Whittington, Ray, and Kurt Pany. Principles of Auditing and Other Assurance Services. 13th ed. Boston: Irwin/McGraw-Hill, 2001.

Whittington, Ray, and Kurt Pany. Principles of Auditing and Other Assurance Services. 13th ed. Irwin/McGraw-Hill, 2001.