Baştürk, B., K. Kanbur, İlker Polatoğluc, and Y. Yürekli. “Mechanical Properties of Acorn and Pine Cone Filled Polymer Composites”. American Scientific Research Journal for Engineering, Technology, and Sciences, vol. 14, no. 2, Oct. 2015, pp. 144-53, https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/878.