Asst. Prof. Dr. Iman Shakir Mohammed and Mohammed Ali Hussein 2022. AUDITING FAIR VALUE ESTIMATES IN LIGHT OF THE EFFECTIVENESS OF PROFESSIONAL SKEPTICISM AND THE CHALLENGES FACING THE EXTERNAL AUDITOR. AN ANALYTICAL STUDY OF IRAQI AUDITING FIRMS STUDY OF IRAQI AUDITING OFFICES AND COMPANIES. World Bulletin of Management and Law. 17, (Dec. 2022), 175-189.