Nurhadi A. Analisis Kekuatan Struktur Beton Bertulang Menggunakan Material Tambahan Abu Terbang (Fly Ash). J. Basic Eng. [Internet]. 2025 Aug. 9 [cited 2025 Aug. 14];1(1):24-32. Available from: https://ejournal.kalibra.or.id/index.php/jets/article/view/51