Sangu, S. S., and S. Muid. “Effects of Inoculum Concentrations of Colletotrichum Gloeosporioides on Disease Development and Severity on Leaves of Rubber Tree (Hevea Brasiliensis)”. Borneo Journal of Resource Science and Technology, Vol. 6, no. 1, June 2016, pp. 50-54, doi:10.33736/bjrst.217.2016.