Widianti, A., Hatta, M., Rahmawati, A., & Eksana Wibowo, D. (2025). Enhancing the Geotechnical Behavior of Expansive Soil-Coconut Fiber Mixtures with Various Agricultural Ash Waste: A Comparative Study: 10.32526/ennrj/23/20240338. Environment and Natural Resources Journal, 23(4), 379–389. retrieved from https://ph02.tci-thaijo.org/index.php/ennrj/article/view/257175