SRUTHI R.; BIJU C. R.; JYOTISREE G.; AMITA S. MENON; AYSWARYA K.; BABU G. Formulation, Evaluation and HPTLC Analysis of Topical Ointment Containing Calendula officinalis and Echinacae purpurae Mother Tinctures. International Journal for Research in Applied Sciences and Biotechnology, [S. l.], v. 7, n. 6, p. 78–84, 2020. Disponível em: https://ijrasb.com/index.php/ijrasb/article/view/299. Acesso em: 16 jul. 2024.