P. MURUGESAN, G. RAVICHANDRAN, and M. SHAREEF, “Effect of mechanical seed scarification on germination and seedling growth of inter specific hybrids of oil palm (Elaeis oleifera)”, Indian J Agri Sci, vol. 85, no. 3, pp. 374–377, Mar. 2015, doi: 10.56093/ijas.v85i3.47121.