A. FATIMA. EXTRACTION AND EVALUATION OF A NATURAL DYE FROM BISTORTA AMPLEXICAULE. Pakistan Journal of Science, [S. l.], v. 69, n. 2, 2023. DOI: 10.57041/vol69iss2pp%p. Disponível em: http://pjosr.com/index.php/pjs/article/view/355. Acesso em: 16 may. 2026.