From Yo Dai Thai, 3 Years ago, written in PHP.
  1. https://jas.instructure.com/eportfolios/744/Home
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  3. https://jas.instructure.com/eportfolios/755/Home/
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  5. https://jas.instructure.com/eportfolios/760/Home/
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  7. https://jas.instructure.com/eportfolios/850/Home/20211080PTaiwan
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  9. https://jas.instructure.com/eportfolios/858/Home/
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  11. https://jas.instructure.com/eportfolios/874/Home
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  13. https://jas.instructure.com/eportfolios/889/Home
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  15. https://jas.instructure.com/eportfolios/908/Home
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  17. https://www.geogebra.org/m/dvrzzqfr
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