Raju, K. Venkateswara. “A Comparative Study of Over-the-Counter Drug Regulations in India and United States of America and European Union”. Asian Journal of Pharmaceutics (AJP) 17, no. 04 (December 15, 2023). Accessed May 8, 2024. http://asiapharmaceutics.info/index.php/ajp/article/view/5082.