Rita'S
RiTa' Sianturi
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Ulasan bkp
Ulasan unsur,senyawa
Feb 11, 2021
2 min
Bkp
Ulasan KBM bkp sebelumnya
Feb 11, 2021
2 min
Jenis limbah
Jenis limbah: berdasarkan wujud, sumber dan senyawa
Feb 11, 2021
9 min
Definisi limbah
Silakan dengarkan ya nak...
Feb 11, 2021
2 min
