Jasri, Aprizal, Erlinda, Febri Haswan, & Amirel Hafief Agiel. (2026). Development of a Machine Learning Model for Predicting River Pollution Levels Caused by Illegal Gold Mining Activities in Kuantan Singingi Regency. JURNAL TEKNOLOGI DAN OPEN SOURCE, 9(1), 390 - 410. https://doi.org/10.36378/jtos.v9i1.5724