S. Arifin, “Scrap Collectors in Improving the Economy of Kradeanan Village Community”, IJILE, vol. 1, no. 2, hlm. 181–194, Jun 2026, Diakses: 21 Agustus 2026. [Daring]. Tersedia pada: https://ejournal.ijile.org/index.php/ijile/article/view/12