DETERMINATION OF PHYTOCHEMICAL COMPOUND FROM Spirogyra sp. USING ULTRASONIC ASSISTED EXTRACTION. GEOMATE Journal, [S. l.], v. 11, n. 24, p. 2391–2396, 2017. Disponível em: https://geomatejournal.com/geomate/article/view/2082. Acesso em: 19 aug. 2026.