SIHOMBING, Freddi Herwines; SIANIPAR, Indra Joy Saputra; NDRURU, Tolonasokhi. Factors Causing Cost Increases In Building Structural Work In Medan. Jurnal Ilmu Sosial dan Humaniora , [S. l.], v. 3, n. 4, p. 1003–1010, 2026. DOI: 10.58540/isihumor.v3i4.2601. Disponível em: https://www.putrapublisher.org/index.php/isihumor/article/view/2601. Acesso em: 11 nov. 2026.