ANISA, Hilwa; MASTHURA, Masthura; SIRAIT, Ratni. Pengaruh Variasi Ekstrak Gambir Dalam Pembuatan Tinta Spidol Whiteboard Ramah Lingkungan. Jurnal Fisika Unand, [S. l.], v. 13, n. 3, p. 315–321, 2024. DOI: 10.25077/jfu.13.3.315-321.2024. Disponível em: http://jfu.fmipa.unand.ac.id/index.php/jfu/article/view/1221. Acesso em: 22 nov. 2024.