Syarifudin E, Chaerul M, Gusty S. Determination of Flow Direction and Catchment Area Model Using Quantum GIS Analysis and Remote Sensing Imagery at Nickel Mining Locations. Astonjadro [Internet]. 2025 Sep. 24 [cited 2025 Dec. 5];14(3):956-64. Available from: http://150.107.142.43/index.php/ASTONJADRO/article/view/18805