RIDHAR B S , SHASHIKALA A R , VISHNU P K. (2020). Mechanical Characterization Of Polyurethane Foam And Hybrid Natural Fibre Based Sandwich Composite . PalArch’s Journal of Archaeology of Egypt / Egyptology, 17(9), 5588 - 5604. Retrieved from https://www.archives.palarch.nl/index.php/jae/article/view/5044