NUR FAJRIANI RAUF; SYARIFAH RABIATUL ADAWIAH; BURHANUDDIN HAFID. DETERMINATION OF METHYLENE BLUE INDEX IN SILICA SAND–CLAY MIXTURES USING ASTM C837-09 Determination of Clay Content Based on the Standard Test Method for Methylene Blue Index (ASTM C83-09) . RITMA: Journal of Islamic Integrated Research, Science, and Community, [S. l.], v. 4, n. 2, p. 391–396, 2026. Disponível em: https://journal.uin-alauddin.ac.id/index.php/ritma/article/view/73216. Acesso em: 1 nov. 2026.