Rahim Sudin, and Khozirah Shaari. 1991. “EFFECT OF WOOD/GYPSUM RATIO AND DENSITY ON STRENGTH PROPERTIES OF GYPSUM-BONDED PARTICLEBOARD FROM OIL PALM STEMS”. Journal of Tropical Forest Science (JTFS) 4 (1):80-86. https://jtfs.frim.gov.my/jtfs/article/view/1978.