Comprehensive NMR Spectral Analysis and Prediction of Selected Coumarin Derivatives Using 1H, 13C, 2D-COSY, HSQC, and HMBC Techniques. Asian Journal of Medical Research and Health Sciences (A-JMRHS), [S. l.], v. 3, n. 2, p. 34–42, 2025. DOI: 10.5455/AJMRHS.20250507. Disponível em: http://www.ajmrhs.com/index.php/journal/article/view/10. Acesso em: 31 dec. 2025.