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		Vincensio Simon, Michael Angelo, 		Setiawan, Widyadi, AND 		Sastra, Nyoman Putra.
" RANCANG BANGUN SISTEM PERINGATAN DINI BAHAYA AKTIVITAS GUNUNG BERAPI BERBASIS MIKROKONTROLER ARDUINO" <em>Jurnal SPEKTRUM</em> [Online], Volume 7 Number 3 (6 September 2020)