Pallar BM, Abram PH, Ningsih P. Analysis of Hard Water Coagulation in Water Sources of Kawatuna using Aloe Vera Plant. J. Akademika Kimia [Internet]. 2020May29 [cited 2025Apr.24];9(2):125-32. Available from: https://jurnalfkipuntad.com/index.php/jak/article/view/363