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 Incremental Backward Hole-Flanging Pelat Tembaga Melalui Jalur Pembentukan Spiral.
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ISSN 2477-2097. Available at: &lt;<a href="http://proceeding.sentrinov.org/index.php/sentrinov/article/view/293" target="_new">http://proceeding.sentrinov.org/index.php/sentrinov/article/view/293</a>&gt;. Date accessed: 27 may 2022.