Putri NFY, Rahmayanti M. Desorption of Naphtol Blue-Black from Humic Acid Modified Magnetite Using NaOH as Desorption Agent. icse [Internet]. 2020 Apr. 30 [cited 2025 Nov. 16];3:157-8. Available from: http://sunankalijaga.org/prosiding/index.php/icse/article/view/488