Yusoff, nor A., S. N. Tajuddin, A. Hisyam, and N. A. Mohd Omar. “Production of Agarwood Essential Oil: Study on Effectiveness Pre-Treatment Technique of Hydrodistillation Extraction”. Borneo Journal of Resource Science and Technology, Vol. 5, no. 2, 1, pp. 62-69, doi:10.33736/bjrst.223.2015.