Purwanto, Dwi. “Development of Solar Panel-Based Automatic Street Lights in Karanganyar Village, Banjarnegara Regency: Pembuatan Lampu Jalan Otomatis Berbasis Solar Panel Di Desa Karanganyar, Kabupaten Banjarnegara”. Prosiding University Research Colloquium, vol. 18, Feb. 2024, pp. 476-81, https://repository.urecol.org/index.php/proceeding/article/view/3040.