Sdoodee, S., S. Isarangkool Na Ayutthaya, P. Songsri, S. Gonkhamdee, and S. Sdoodee. “First testing of the double cut alternative tapping system on rubber tree clone RRIM600 in marginal area, northeast Thailand”. Asia-Pacific Journal of Science and Technology, vol. 21, no. 3, Sept. 2016, pp. 28-35, doi:10.14456/apst.2016.3.