“ENGINERING HOPPER DRYER BUFFER TOOL AT THE PLASTIC WORKSHOP OF POLYTECHNIC ATK YOGYAKARTA”. Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit 23, no. 1 (December 16, 2024): 13–22. Accessed December 22, 2024. https://e-jurnal.atk.ac.id/index.php/bptkspk/article/view/45.