Saputra NA, Handayani N, Santoso B. Study Komparasi Penambahan Palm Oil Ash Dengan Bantuan Semen Berdasarkan Nilai California Bearing Ratio: Comparative Study Of Addition Of Palm Oil Ash With Support Of Cement Based On California Bearing Ratio . n.a. ilm. teknik n.a. [Internet]. 2023Sep.30 [cited 2024May14];11(3):241-7. Available from: https://journal.umpr.ac.id/index.php/mits/article/view/5347