Sreekanth, Y., and S.V.S. Girija. “Methodologies of Construction of Circular Models”. International Journal Of Mathematics And Computer Research 12, no. 2 (February 10, 2024): 4015-4021. Accessed May 19, 2026. https://www.ijmcr.everant.org/index.php/ijmcr/article/view/695.