Rety Habsari, Indriani, Mahendra Andiek Maulana, Dwa Desa Warnana, and Apri Artoto. “ubsurface nalysis of ational oad ts. idoarjo ity – empol sing eophisycs ethod and eotechnical ests”. Journal of Infrastructure & Facility Asset Management 5, no. 2 (July 27, 2025): 65–74. ccessed December 6, 2025. https://journal.its.ac.id/index.php/jifam/article/view/7675.