Suhendra Gobel, Dumpira, H. and Pioh, P. 2023. Evaluation of The Density of Class A Aggregate Foundation Layer Work With The Sand Cone Method On The Road Improvement Project of The East Tombatu Sub-District, Kapleng Road. JPNM Jurnal Pustaka Nusantara Multidisiplin. 1, 4 (Dec. 2023). DOI:https://doi.org/10.59945/jpnm.v1i4.79.