YASSER, Muhammad; BADAI, Muhammad. KAREKTERISASI EKSTRAK ETANOL UBI JALAR UNGU (Ipomea batatas L) MENGGUNAKAN SPEKTROSKOPI INFRARED. Cokroaminoto Journal of Chemical Science, [S. l.], v. 1, n. 1, p. 4–6, 2019. Disponível em: https://science.e-journal.my.id/cjcs/article/view/11. Acesso em: 29 jan. 2026.