Ali, N. F. New natural dyes from red prickly pear produced by addition of metal ions and their application in textile. Int. J. Agric. Tech. [internet]. 2025 Sep. 20 [cited 2025 Nov. 18];21(5):1629-44. available from: https://li04.tci-thaijo.org/index.php/IJAT/article/view/7518