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Agriana Putri, N.F. and Kurniasih, N. 2026. Implementasi Program Tempat Pengolahan Sampah Terpadu Simpangsari Peduli Lingkungan (TPST SIMPEL) Corporate Social Responsibility (CSR) PT. Kereta Api Indonesia Persero. Pekerjaan Sosial. 25, 1 (Aug. 2026). DOI:https://doi.org/10.31595/peksos.v25i1.1234.