Wibowo, A., M. Mujiman, and W. Handajadi. “FREKUENSI GANGGUAN TERHADAP KINERJA SISTEM PROTEKSI DI GARDU INDUK 150 KV BANTUL”. Jurnal Elektrikal, vol. 2, no. 1, Oct. 2019, pp. 27-35, https://ejournal.akprind.ac.id/index.php/elektrikal/article/view/2594.