Development Of Laboratory Work Instruction For Junior High School: Borax Content Identification Using Natural Indicators. International Journal of Scientific Research and Management (IJSRM), [S. l.], v. 7, n. 05, p. 999–1005, 2019. DOI: 10.18535/ijsrm/v7i5.el01. Disponível em: https://ijsrm.net/index.php/ijsrm/article/view/2200.. Acesso em: 1 may. 2024.