Hakim, M. S. (2026) “A LOW-COST COLORIMETRIC DETECTION OF HG2+ USING PAPER-BASED SENSOR WITH EUCLIDEAN DISTANCE APPROACH”, Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya, 8(1), pp. 184–190. doi: 10.36526/jc.v8i1.7434.