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Nugraha R, Mahardana Z, Winarto S. Peningkatan Workability Pasta Beton Modifikasi Dengan Pemanfaatan Abu Sekam Padi Menggunakan Superplasticizer. JIRS [Internet]. 26Apr.2024 [cited 25Dec.2025];21(1):93-02. Available from: http://ejournal2.pnp.ac.id/index.php/jirs/article/view/1309