Synthesis and Biological Studies of 4‐Methyl-7‐Ethylcoumarin Derivatives Containing Azo Group. Baghdad Science Journal, Iraq, Baghdad, v. 21, n. 7, p. 2343, 2024. DOI: 10.21123/bsj.2023.9143. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/9143.. Acesso em: 22 jul. 2024.