Bledzki, A. K., et al. “Influence of Compounding Processes and Fibre Length on the Mechanical Properties of Abaca Fibre-Polypropylene Composites”. Polimery, vol. 53, no. 2, Aug. 2022, pp. 120-5, https://ichp.vot.pl/index.php/p/article/view/1292.