Viviani, Gusdini, and Fivia Eliza. “Rancang Bangun Alat Pemisah Dan Penghitung Barang Menggunakan Barcode Scanner Android Berbasis NodeMCU ESP8266”. MSI Transaction on Education 3, no. 2 (July 1, 2022): 91-102. Accessed September 18, 2025. https://msirp.org/journal/index.php/mted/article/view/84.