Fitriansyah, U. 2025. Implementasi Scan Barcode Peminjaman Buku Perpustakaan Elektro Polnep berbasis ESP32 Dan Google Spreadsheets. Electrical Network Systems and Sources. 4, 2 (Jun 2025), 7-10. DOI:https://doi.org/10.58466/entries.v4i2.1804.