The Effect Of Contact Time Variations On The Efficiency Value And The Adsorption Kinetic Mechanism Of Iron (Fe) On Batik Waste Cual Using Chitosan. Jurnal Riset Fisika Indonesia, [S. l.], v. 2, n. 2, p. 31–36, 2022. DOI: 10.33019/jrfi.v2i2.3221. Disponível em: https://journal.ubb.ac.id/index.php/jrfi/article/view/3221. Acesso em: 3 may. 2026.