Khalid, B., A. Yaqub, L. Liaquat, and M. Sohaib. “Relative Study of the Colour Fastness of Cotton, Woolen and Silk Fabrics Dyed With Walnut Bark Dye”. Biological Sciences - PJSIR, vol. 51, no. 3, June 2008, pp. 131-5, https://v2.pjsir.org/index.php/biological-sciences/article/view/654.