Budhi, Wahyu Satyaning, and Annisa Maharani. “The Impact of Cement and Rice Husk Ash on the Unconfined Compressive Strength of Expansive Clay Soil”. International Journal of Mechanical, Electrical and Civil Engineering 2, no. 4 (October 31, 2025): 222–229. Accessed July 19, 2026. https://international.aritekin.or.id/index.php/IJMECIE/article/view/378.