Sim, S. F., F. Mohd Sinang, D. Kertini, F. Collick, M. E. Dankan, V. R. N. Luncha, and N. S. Abdul Majid. “Combining Essential Oils of Piper Betle and Myristica Fragrans for Enhanced Antimicrobial Properties”. Borneo Journal of Resource Science and Technology, Vol. 3, no. 1, 1, pp. 35-42, doi:10.33736/bjrst.254.2013.