Sarah Kristina, Aprilia, and Rinaldy Dalimi. 2026. “Solar Irradiation Data Analysis Using Python and SPSS for Rooftop PV Design Based on Energy Import Export to Reduce Household Electricity Bills”. Eduvest - Journal of Universal Studies 6 (6):7383-7400. https://doi.org/10.59188/eduvest.v6i6.53283.