SIREGAR, L.A.M., KENG, C.L. and LIM, B.P. (2009) “Effects of Medium Constituents on Growth and Canthinone Accumulation in Cell Suspension Cultures of Eurycoma longifolia Jack”, HAYATI Journal of Biosciences, 16(2), p. 69. doi:10.4308/hjb.16.2.69.