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Ninef, Rusnywaty Yalensy (2023) Peran Dinas Lingkungan Hidup Dalam Pengelolaan Sampah Dan Kebersihan Di Kota Surabaya. (The Role of the Environmental Service in Waste Management and Cleanliness in the City of Surabaya). Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.