Hassan, N.; Abdullah, R.; Kiong, L.; Ahmad, A.; Abdullah, N.; Zainudin, F.; Ismail, H.; Abd. Rahman, S. Micropropagation and Production of Eurycomanone, 9- Methoxycanthin-6-One and Canthin-6-One in Roots of <i>Eurycoma longifolia</i> Plantlets. ajb 2014, 11, 6818-6825.