Ayu, S.D. et al. 2026. Napa Soil-Derived NiAl₂O₄/MWCNT-Modified Glassy Carbon Electrode for Cd²⁺ Detection. Hydrogen: Jurnal Kependidikan Kimia. 14, 3 (Jun. 2026), 472–478. DOI:https://doi.org/10.33394/hjkk.v14i3.21268.