Sugiyanto, Didik, Yefri Chan, and Angga Taopik. “PENGARUH TEMPERATUR DAN TEKANAN TERHADAP HASIL CETAKAN POLYPROPYLENE MENGGUNAKAN MESIN INJECTION MOLDING VERTIKAL: The Influence of Temperature and Pressure on the Results of Polypropylene Molding Using a Vertical Injection Molding Machine”. Jurnal Konversi Energi dan Manufaktur 8, no. 2 (July 12, 2023): 131 – 141. Accessed November 16, 2024. https://journal.unj.ac.id/unj/index.php/jkem/article/view/35298.