GANGGUAN PADA SISTEM EKSKRESI MANUSIA
1.GINJAL
https://www.youtube.com/watch?v=-xzjGczUUuU&t=163s
2. KULIT
https://www.youtube.com/watch?v=9ZaoLKkiXzo&t=133s
3. PARU-PARU
https://www.youtube.com/watch?v=_YdcV08ufMI
4.HATI
https://www.youtube.com/watch?v=NAl1L7K6Vuk
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