Husna, Siti Misbahul, and Ayik Pusakaningwati. “Penerapan 5R Area Produksi Paving Blok Di PT. Duta Beton Mandiri Purwosari”. As-Syirkah: Islamic Economic & Financial Journal 3, no. 3 (September 2, 2024): 1628 – 1635. Accessed August 19, 2026. https://journal-ikadi.com/ojs/index.php/assyirkah/article/view/324.