Amjad, Rana, Munawar Ali Munawar, Shahid Rehman Khan, and Muhammad Naeem. “Synthesis and Spectral Studies of Some Novel Coumarin Based Disperse Azo Dyes: Studies of Coumarin Based Azo Dyes”. Biological Sciences - PJSIR 52, no. 3 (April 27, 2009): 117–121. Accessed May 6, 2024. https://v2.pjsir.org/index.php/biological-sciences/article/view/532.