Toya, Ikran. “PENGUJIAN KUAT TEKAN BETON MENGGUNAKAN BAHAN TAMBAH PLASTIK JENIS POLYETHYLEN TEREPHTALATE”. Jurnal Sains dan Teknologi Tadulako 11, no. 2 (August 26, 2025): 140-150. Accessed October 9, 2025. http://103.245.72.41/index.php/jstt/article/view/983.