Shu-Mei Liu and  Feng-Chuan Pan,  Training on the Ceasing Intention of Betelnut Addiction.   journal   = {International Journal of Humanities and Social Sciences}, [online]. World Academy of Science, Engineering and Technology.
    October 2011, vol. 58(10). 1258 - 1261
    [viewed 18 May 2021]. Available from: https://publications.waset.org/pdf/5765.