Shoujaa, Ahmad. “Simultaneous and Rapid Separation and Determination of Vitamins B1, B2, PP, and B6 Using Ion-Pair Rp-HPLC and Ultra Violet Detection in Multivitamin Tablets”. B R Nahata Smriti Sansthan International Journal of Phramaceutical Sciences & Clinical Research 2, no. 2 (January 2, 2023). Accessed July 4, 2025. http://www.ijpscr.info/index.php/ijpscr/article/view/85.