Abd. Halim, A. A., H. Abdul Kadir, and T. Saad. “Guanidine Hydrochloride-Induced Denaturation of Bovine Serum Albumin: A Comparative Study and Analysis Using Different Probes”. Malaysian Journal of Science, vol. 27, no. 2, Aug. 2008, pp. 9-12, https://juku.um.edu.my/index.php/MJS/article/view/7886.