Alitra, Resmi Bestari, and Bambang Purwoko K.B. “Risk Management of Pile Foundation Work Using Analytical Hierarchy Process Method (AHP)”. I. J. of Engineering Research and Advanced Technology - IJERAT (ISSN: 2454-6135), CrossRef: 10.31695/IJERAT, vol. 5, no. 5, May 2019, pp. 37-46, doi:10.31695/IJERAT.2019.3445.