GULTOM, Jelita; SIAGIAN, Midun; TAMBA, Ucok Jhon Royagus; BUKIT, Jecky; SIMORANGKIR, Murniaty. The extract salaon (Indigofera tinctoria L) leaf as the natural dye of ulos in keeping for the batak culture values. Jurnal Pendidikan Kimia, [S. l.], v. 9, n. 2, p. 293–298, 2017. DOI: 10.24114/jpkim.v9i2.7602. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/jpk/article/view/7602. Acesso em: 25 aug. 2025.