ARROHMAN, Donny Auliya; FIKRIYYAH, Nafis Ainun. Implementation of Micro Usb Charger TP4056 and Battery Indicator LED in Portable Solar Charge. Journal of Natural Sciences and Mathematics Research, [S. l.], v. 4, n. 1, p. 6–10, 2018. Disponível em: https://journal.walisongo.ac.id/index.php/JNSMR/article/view/10956. Acesso em: 7 jun. 2025.