RIDHAR B S , SHASHIKALA A R , VISHNU P K. “Mechanical Characterization Of Polyurethane Foam And Hybrid Natural Fibre Based Sandwich Composite ”. PalArch’s Journal of Archaeology of Egypt / Egyptology 17, no. 9 (November 5, 2020): 5588 - 5604. Accessed March 28, 2024. https://www.archives.palarch.nl/index.php/jae/article/view/5044.