AL-TANNAK, N. F.; NOVOTNY, L. LC-MS Method for the Detection and Quantification of Ursolic Acid and Uvaol Levels in Olive Leaves and Oregano. Emirates Journal of Food and Agriculture, [S. l.], v. 32, n. 8, p. 600–609, 2020. DOI: 10.9755/ejfa.2020.v32.i8.2137. Disponível em: https://www.ejfa.me/index.php/journal/article/view/2137. Acesso em: 10 oct. 2025.