Azmi, A. N. ., S. K. . Bejo, M. . Jahari, F. M. . Muharam, and I. . Yule. “Differences Between Healthy and Ganoderma Boninense Infected Oil Palm Seedlings Using Spectral Reflectance of Young Leaf Data”. Basrah Journal of Agricultural Sciences, vol. 34, Aug. 2021, pp. 171-9, doi:10.37077/25200860.2021.34.sp1.17.