Prabawati, S. Y. ., & Fitriana, F. (2017). Synthesis of 7-(Hydroxy) Coumarin and Its Activity Test As Antibacterial against Staphylococcus aureus and Shigella flexneri. Proceeding International Conference on Science and Engineering, 1, 141–145. https://doi.org/10.14421/icse.v1.285