SYAHARA, Muhammad Alwi; HELILUSIATININGSIH, Nunuk; IRAWATI, Titik. Antioxidant activity assay of Roselle (Hibiscus sabdariffa) seeds Ethanol extract with DPPH radical scavenging using UV-Vis Spectrophotometer. Journal of Natural Sciences and Mathematics Research, [S. l.], v. 10, n. 1, p. 46–54, 2024. Disponível em: https://journal.walisongo.ac.id/index.php/JNSMR/article/view/20515. Acesso em: 25 jun. 2025.