LEBA, Maria Aloisia Uron; MAU, Sisilia Daeng Bakka; BOELAN, Erly Grizca; TAEK, Maximus M.; RUAS, Juvencio de Castro; LAWUNG, Yustina D.; RUAS, Adilson de Castro; KOPON, Aloisius Masan; RUAS, Noemia A. Pigmen Umbi Ubi Jalar Ungu dan Rimpang Kunyit: Indikator Ramah Lingkungan dan Murah untuk Eksperimen Titrasi Asam-Basa. Journal of The Indonesian Society of Integrated Chemistry, [S. l.], v. 15, n. 2, p. 99–109, 2023. DOI: 10.22437/jisic.v15i2.28648. Disponível em: https://www.online-journal.unja.ac.id/jisic/article/view/28648. Acesso em: 17 apr. 2026.