Sánchez-Viesca, Francisco, and Reina Gómez. “A New Approach to the Chemistry of the Serullas Test for Morphine”. Earthline Journal of Chemical Sciences 9, no. 1 (November 5, 2022): 157-162. Accessed April 13, 2025. https://earthlinepublishers.com/index.php/ejcs/article/view/629.