Rahmawati, Nisfisya, Sunarno, and Ali Arifin. “Pengaruh Fly Ash Dan Tempurung Kelapa Terhadap Kuat Tekan Beton”. Jurnal Tugas Akhir Teknik Sipil 5, no. 1 (October 27, 2021): 16-24. Accessed October 18, 2024. http://ojs.poltekba.ac.id/ojs/index.php/jutateks/article/view/298.