“Optimalisasi Efisiensi Operasional Melalui Inovasi Proses Di Industri Daur Ulang Plastik UMKM”. Jurnal Serambi Engineering 10, no. 4 (October 10, 2025). Accessed July 4, 2026. https://jse.serambimekkah.id/index.php/jse/article/view/1383.