JUMIANTI ANWAR, Siti; YUYUN WIRASASMITA; EVI MUSTIQAWATI. Comparison of Calcium Levels (Ca2+) in Mountainous Wells and Coastal Well Water with the Crimsontry Method . International Journal of Multidisciplinary Learners, [S. l.], v. 2, n. 5, p. 60–65, 2026. Disponível em: https://ejournal.poltekbaubau.ac.id/index.php/ijml/article/view/1409. Acesso em: 1 oct. 2026.