Y. P. Chu, Roszalli Hj. Mohd, and Y. T. Chong. “STRENGTH OF PLYWOOD-WEB BOX BEAM”. Journal of Tropical Forest Science (JTFS) 5, no. 4 (June 21, 1993): 492–511. Accessed May 17, 2024. https://jtfs.frim.gov.my/jtfs/article/view/1966.