RANCANG BANGUN SISTEM ABSENSI IOT BERBASIS ESP32 TERINTEGRASI GOOGLE SPREADSHEET. J-SIKA|Jurnal Sistem Informasi Karya Anak Bangsa , [S. l.], v. 8, n. 01, p. 1–9, 2026. Disponível em: https://ejournal.unibba.ac.id/index.php/j-sika/article/view/2033. Acesso em: 20 aug. 2026.