F.R. Chia. 1995. “STEM CHARACTERISTICS AND GROWTH OF PLANTED AND WILD ROTAN BATU(<em>CALAMUS</em> <em>SUBINERMIS</Em>) IN SABAH”. Journal of Tropical Forest Science (JTFS) 7 (3):447-53. https://jtfs.frim.gov.my/jtfs/article/view/1842.