1. ASHRAE Standard 111-1988, Practices for Measurement, Testing, Adjusting, and Balancing of Building Heating, Ventilation, Air Conditioning, and Refrigeration Systems,1988
2. 1997 ASHRAE Handbook, Fundamentals,1997
3. ASTM E-779-87, Standard Test Method for Determining Air Leakage Rate by Fan Pressurization,1987
4. Field investigation of duct system performance in light commercial buildings (round 2);Delp,1998
5. Exterior exposed ductwork: delivery effectiveness and efficiency;Delp;ASHRAE Trans.,1998