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Available at: &lt;<a href="http://103.29.196.112/index.php/jmat/article/view/25348" target="_new">http://103.29.196.112/index.php/jmat/article/view/25348</a>&gt;. Date accessed: 17 dec. 2025.
doi: <a href="https://doi.org/10.24843/JMAT.2016.v06.i01.p63">https://doi.org/10.24843/JMAT.2016.v06.i01.p63</a>.