Rajin, M., A. Zulkifli, S. Abang, S. M. Annissuzzaman, and A. H. Kamaruddin. “Effect of Reaction Parameters on the Lipase-Catalyzed Kinetic Resolution of (RS )-Metoprolol”. ASEAN Journal of Chemical Engineering, Vol. 20, no. 1, June 2020, pp. 20-30, https://journal.ugm.ac.id/v3/AJChE/article/view/9096.