Wa Ode Tri Dian Jeni, Wa Ode Syafriah, and Muhammad Tasjiddin Teheni. “Determination of Calcium (Ca) Levels in Refilled Drinking Water in Baubau City”. International Journal of Multidisciplinary Learners 2, no. 6 (August 31, 2026): 134–139. Accessed October 1, 2026. https://ejournal.poltekbaubau.ac.id/index.php/ijml/article/view/1363.