Putri, N. A., Sari, T. K., Oktavia, B., & Ningsih, S. K. W. (2026). Development of a Cr(VI) metal ion detection sensor using a modified pencil lead electrode (PLE) with a silver thin layer using the voltammetry method. Acta Chimica Asiana, 9(1), 859–866. https://doi.org/10.29303/aca.v9i1.251