Rancang Bangun Alat Monitoring PH Air Untuk mengukur Tingkat Ketercemaran Air…
Pencemaran sungai sangat berbahaya bagi kelangsungan hidup manusia. Dampak pencemaran sungai dapat menjadi bencana besar misalnya kematian biota air, timbulnya wabah penyakit, dan kerusakan ekosist…
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