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Mahyunis, Nurdiana, Farah Dina S, Wito Pirmansyah A. Design and Manufacture of Free Fall Impact Test Equipment with Drop Weight Test model. IRA J.Tek. Mesin Dan Apl [Internet]. 2022 Aug. 15 [cited 2025 Aug. 5];1(1):41-50. Available from: http://e-journals.irapublishing.com/index.php/IRAJTMA/article/view/8