Azis, Asmawaty, Muh Sakir, and Nurhalisa Nurhalisa. 2021. “Sistem Alarm Pendeteksi Posisi Ternak Berbasis GPS Dan SMS”. Protek : Jurnal Ilmiah Teknik Elektro 8 (2):113-17. https://doi.org/10.33387/protk.v8i2.3440.