Bandaru, S. K.; Risi, M. C. Zn(OAc)2.2H2O-Catalyzed C3-Alkylation and O-Alkylation of 4-Hydroxycoumarin Derivatives: 10.55434/CBI.2022.20102. Carib. J. Sci. Tech. 2022, 10, 10-16.