NOVIANDARI, Puji; 						RENNY, Renny.
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ISSN 2550-0422.
Available at: &lt;<a href="http://jos.unsoed.ac.id/index.php/jmp/article/view/2947" target="_new">http://jos.unsoed.ac.id/index.php/jmp/article/view/2947</a>&gt;. Date accessed: 24 apr. 2024.
doi: <a href="https://doi.org/10.20884/1.jmp.2012.4.1.2947">https://doi.org/10.20884/1.jmp.2012.4.1.2947</a>.