Raji V. S, R. I, M. R. S. An In Vitro Spectrophotometric Analysis of Colour Differences Between Composite Resins and their Shade Guides. JPFA [Internet]. 2008 Mar. 29 [cited 2024 Nov. 7];22(1):8-15. Available from: https://informaticsjournals.co.in/index.php/jpfa/article/view/22875