SURYOWINOTO, A.; HERLAMBANG, T.; WIDJANARKO, A.; PRABOWO, Y.; TOMASOUW, B. TRACKING SYSTEM USING GPS AND SMART CARD AUTHENTIFICATION BASED ON ESP 32 MCU. BAREKENG: Jurnal Ilmu Matematika dan Terapan, v. 18, n. 2, p. 0751-0758, 25 maio 2024.