“Analytical Method Development And Validation For Metformin Hcl In Transdermal Patch”. African Journal of Biomedical Research 27, no. 6S (November 20, 2024): 1189–1205. Accessed October 23, 2025. https://www.africanjournalofbiomedicalresearch.com/index.php/AJBR/article/view/8074.