1. AITC (American Institute of Timber Construction) (1985). Timber Construction Manual, 3rd ed. Vancouver, Washington: American Institute of Timber Construction.
2. ANSI (American National Standards Institute) (1982). Minimum Design Loads for Buildings and Other Structures. ANSI A58.1–1982. New York: American National Standards Institute.
3. Aplin, E. N., and F. J. Keenan (1977). Limit states design in wood. Forest Products Journal 27(7):14–18.
4. Aplin, N. E., D. W. Green, J. W. Evans, and J. D. Barrett (1986). The Influence of Moisture Content on the Flexural Properties of Douglas-Fir Dimension Lumber. USDA Forest Service Research Paper FPL475. Madison, Wisconsin: Forest Products Laboratory.
5. ASCE (American Society of Civil Engineers) (1988). Load and Resistance Factor Design for Engineered Wood Construction. New York: American Society of Civil Engineers.