Yudha, Sabdha Purna. “PENGARUH PENGGUNAAN PASIR BALIKPAPAN TERHADAP KEKERASAN DAN FLUIDITAS LOGAM CORAN PADUAN Al-Si”. Otopro 16, no. 2 (May 27, 2021): 34–38. Accessed June 10, 2025. https://journal.unesa.ac.id/index.php/jo/article/view/12943.