N. . Ismail, M. . lbrahim, S. . Zareen, M. H. F. . Rahiman, S. N. . Tajuddin, and M. N. . Taib, “Characterization of Agarwood Incense using Gas Chromatography - Mass Spectrometry (GC-MS) coupled with Solid Phase Micro Extraction (SPME) and Gas Chromatography - Flame Ionization Detector (GC-FID)”, SRJ, vol. 12, no. 2, pp. 67–81, Dec. 2015.