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Slat, W. S.; Runtuwene, S. J.; Djefry Hosang; Agnes Wakkary; Yenni Sigalingging. The Effect of Temperature Variations on Sheet Press Machines on the Hardness and Toughness of PP (Polypropylene) and HDPE (High Density Polyethylene) Materials. IJST 2025, 4, 118-131.