P. Gangatharan, 2K. Anbarasu. “Geochemistry Characterization of Alkaline Syenite from Pakkanadu Alkaline Carbonatite Complex, Ultramafic Rocks from in Southern Granulite Terrain”. PalArch’s Journal of Archaeology of Egypt Egyptology, vol. 17, no. 9, Nov. 2020, pp. 7736-4, https://archives.palarch.nl/index.php/jae/article/view/5576.