SIHOTANG, Nadia Givani; SARAGIH, Ruth Yohana; TARIGAN, Dewan Dinata; PAKPAHAN, Mika Yohana; SIHOTANG, Dafit Ericson; SILABAN, Saronom; SIMORANGKIR, Murniaty. Ulos batak natural dye paste from salaon leaf extract (Indigofera tinctoria L), ketapang leaf (Terminalia catappa), and cocoa fruit peel (Theobroma cacao L). Jurnal Pendidikan Kimia, [S. l.], v. 15, n. 1, p. 29–34, 2023. DOI: 10.24114/jpkim.v15i1.38358. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/jpk/article/view/38358. Acesso em: 5 jul. 2025.