Mahasiswa UB Bikin Lampu Laga Siaga Gempa, Bunyi Alarm Berbeda-beda Tergantung Getaran https://ift.tt/0LcRzmw
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Mahasiswa UB Bikin Lampu Laga Siaga Gempa, Bunyi Alarm Berbeda-beda Tergantung Getaran https://ift.tt/0LcRzmw
Tribunnews | Malang 
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