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International Journal of Engineering and Information Systems (IJEAIS) ISSN: 2643-640X Vol. 4 Issue 10, October - 2020, Pages: 12-16 www.ijeais.org/ijeais 12 Small-Scale Gold Mining Progress in Prospects in Improving Countries
Umirzoqov Azamat Abdurashidovich,
Bekmuratov Ajiniyaz Omirbek ogli
http://ijeais.org/wp-content/uploads/2020/10/IJEAIS201005.pdfArchived 13 April 2023 at the Wayback Machine
Ames, R.G (1985). "Respiratory disease and suicide among US coal miners: is there a relationship?". American Journal of Preventive Medicine. 1 (6): 58–60. doi:10.1016/S0749-3797(18)31379-5. PMID3870926.
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International Journal of Engineering and Information Systems (IJEAIS) ISSN: 2643-640X Vol. 4 Issue 10, October - 2020, Pages: 12-16 www.ijeais.org/ijeais 12 Small-Scale Gold Mining Progress in Prospects in Improving Countries
Umirzoqov Azamat Abdurashidovich,
Bekmuratov Ajiniyaz Omirbek ogli
http://ijeais.org/wp-content/uploads/2020/10/IJEAIS201005.pdfArchived 13 April 2023 at the Wayback Machine
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