Al-Badran, A. and Al-Fadal, S. (2017) “Cloning, Expression of Hirudin Gene from Leech (Hirudo orientalis) in BL21(DE3) Strain”, American Scientific Research Journal for Engineering, Technology, and Sciences, 27(1), pp. 25–42. Available at: https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/2511 (Accessed: 24 April 2024).