Padantha, Gerry T, et al. “STUDY ON THE CHANGES IN CHARACTERISTICS OF HIGHLY EXPANSIVE SOIL IN CIREBON DUE TO ADDITION OF EGGSHELL POWDER”. Jurnal Ilmiah Teknik Sipil, vol. 29, no. 2, Sept. 2025, pp. 104-1, doi:10.24843/JITS.2025.v29.i02.p01.