Yeniocak, M., O. Goktas, M. Colak, E. Ozen, and M. Ugurlu. “Natural Coloration of Wood Material by Red Beetroot (Beta Vulgaris) and Determination Color Stability under UV Exposure”. Maderas. Ciencia Y Tecnología, vol. 17, no. 4, Dec. 2015, pp. 711-22, https://revistas.ubiobio.cl/index.php/MCT/article/view/2178.