Ramachandran, Reena, and Bhuwan Joshi. “Structures Related to Morphine Synthesis of Alpha 2 OH 2 Methyl 5 Propyl 9 Ethyl 6 7 Benzomorphan - Part 1”. Defence Science Journal 20, no. 4 (October 1, 2014): 233-236. Accessed July 3, 2024. https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/6210.