H. Ragavendra Rao, K. Madhava Reddy, G.Suresh kumar, P. Harishankar. “Granite Powder As Filler for Producing PVA Based Composite Films: Synthesis and Characterization ”. Design Engineering, no. 1 (March 5, 2022): 2231-2241. Accessed April 23, 2024. http://thedesignengineering.com/index.php/DE/article/view/9219.