Muhida, R., M. Riza, A. Harsoyo, H. Murwadi, and A. Legowo. “Utilization of IoT for Measuring Hydrogen Production in a Photovoltaic-Solid Polymer Electrolyte (PV-SPE) System”. Journal of Applied Science and Advanced Engineering, vol. 3, no. 1, Mar. 2025, pp. 37-41, doi:10.59097/jasae.v3i1.55.