Santosa, Wini Hardianti, Ni Putu Ayu Laksmi Purwati, Sri Widaningrum, Devan Rizki Akbari, Richie Cheristo, Dimas Fadilah Lukman Nul Hakim, Rido Amari, and Kautsar Nahja Ismail. “Optimasi Operasional TPA Duta Firdaus Melalui Implementasi 5S (Seiri, Seiton, Seiso, Seiketsu, Dan Shitsuke) ”. The Proceeding of Community Service and Engagement (COSECANT) Seminar 5, no. 1 (October 20, 2025). Accessed January 13, 2026. https://journals.telkomuniversity.ac.id/cosecant/article/view/9358.