#aufal-riswan
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![[BS 1016-104.3-1998] -- Methods for analysis and testing of coal and coke..pdf](https://static.cupdf.com/doc/330x215/577cc0911a28aba711908300/bs-1016-1043-1998-methods-for-analysis-and-testing-of-coal-and-cokepdf.jpg)
![8 Perpa]Akan Mineral](https://static.cupdf.com/doc/330x215/577c7d131a28abe0549d4aa0/8-perpaakan-mineral.jpg)
