The most effective way for an organization to ensure proper governance over its internal controls is by adopting the COSO (Committee of Sponsoring Organizations of the Treadway Commission) internal control framework. The COSO framework is widely recognized and provides a comprehensive structure for designing, implementing, and conducting internal control and assessing its effectiveness. It helps organizations to achieve their objectives in operations, reporting, and compliance by addressing components such as control environment, risk assessment, control activities, information and communication, and monitoring activities. References: The IIA's International Standards for the Professional Practice of Internal Auditing (Standards), specifically Standard 2100 - Nature of Work, and COSO's Internal Control - Integrated Framework.