Chaniago, M. B., Hardiana, R., Wijaya, H. P., Ramadhan, F., Gani, R. H. A., & Saksono, N. A. D. (2022). Design of Portable Parking System Using Android-Based QR Code. CENTRAL ASIA AND THE CAUCASUS, 23(1), 4798-4808. https://ca-c.org/index.php/cac/article/view/474