Syahrulyati, Teti, Singgih Irianto, and Yusup Suhendi. “Reserve Potential Sandy Clay As a Raw Materials Cement Village Hambalang, County Citeureup District Bogor Province Jawabarat – Indonesia”. International Journal of Engineering & Technology 7, no. 3.20 (September 1, 2018): 398–401. Accessed November 24, 2024. https://sciencepubco.com/index.php/ijet/article/view/20580.