L.H, Gam, and Aishah Latiff. “Tandem Mass Spectrometric Analysis of Glycopeptides Derived from the Tryptic Digestion of Human Chorionic Gonadotropin (hCG)”. Malaysian Journal of Science 25, no. 2 (August 31, 2006): 87–95. Accessed May 12, 2024. https://mjs.um.edu.my/index.php/MJS/article/view/8129.