Mandal, Pallab, Soumya Chakraborty, Rakesh Bera, Sanmoy Karmakar, and Tapan Kumar Pal. “Internal Standard an Important Analyte Use in Drug Analysis by Liquid Chromatography Mass Spectrometry- An Article”. International Journal of Pharmaceutical and Bio Medical Science 2, no. 01 (January 11, 2022): 10–17. Accessed May 4, 2024. http://ijpbms.com/index.php/ijpbms/article/view/56.