ASTUTI, D. H. .; PURBA, T. .; SU’UDI, N. .; SANI; NUGRAHA, R. E. . The Role of Na2CO3 as Precipitating Agent in Salt Purification Process. Nusantara Science and Technology Proceedings, Malang, Indonesia, p. 25-29, 2021. Disponível em: http://nstproceeding.com/index.php/nuscientech/article/view/482. Acesso em: 18 may. 2024.