Rehmani, Midhat, and Rashid Raza. “Investigation of Morphine in Locally Available Sweet Supari Marketed in Karachi, Pakistan”. Journal of Research (Science) 33, no. 4 (May 20, 2025): Pages: 115–119. Accessed July 6, 2025. http://jorscience.com/index.php/JRS/article/view/15.