Khalid, Bushra, Azra Yaqub, Lubna Liaquat, and Mohammad Sohaib. 2008. “Relative Study of the Colour Fastness of Cotton, Woolen and Silk Fabrics Dyed With Walnut Bark Dye”. Biological Sciences - PJSIR 51 (3):131-35. https://v2.pjsir.org/index.php/biological-sciences/article/view/654.