Manusia hanya bisa mendengar suara dalam spektrum 20-20 ribu Khz.
Harian Bingo
Suara 'Sangkakala' Lumrah, Sebab Alam Itu Berisik
Posted By Sendal on Wednesday, May 27, 2015 | Wednesday, May 27, 2015
Blog, Updated at: Wednesday, May 27, 2015
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