Dharmalingam, Shanmugam, et al. “Free Vibration and Mechanical Characteristics of Palmyra Palm Leaf Stalk Fibers (PPLSFs) Reinforced Unsaturated Polyester Composites”. BioResources, vol. 20, no. 2, Apr. 2025, pp. 3826-37, https://ojs.bioresources.com/index.php/BRJ/article/view/24382.