Nazirah A, Nor-Hasnida H, Ismanizan I, Norlia B, Abdul-Rashih A, Muhammad-Fuad Y and Mohd-Saifuldullah AW 2018. PRODUCTION OF 9-METHOXYCANTHIN-6-ONE IN ELICITED <em>EURYCOMA</em> <em>LONGIFOLIA</em> HAIRY ROOT. Journal of Tropical Forest Science (JTFS) . 30, 4 (Oct. 2018), 606–614.