Analysis of powdered calendula officinalis linn: A study on the analysis of powdered Calendula officinalis Linn using thin-layer chromatographic technique. Journal of Advances and Scholarly Researches in Allied Education, [S. l.], v. 19, n. 5, p. 328–333, 2022. Disponível em: https://ignited.in/index.php/jasrae/article/view/14095.. Acesso em: 20 aug. 2025.