BONIGALA, Karunaiah. Construction Material Market Volatility on Project Budgetary Risk and Contingency Planning. Journal of Progress in Civil Engineering, [S. l.], v. 8, n. 3, p. 8–12, 2026. DOI: 10.53469/jpce.2026.08(03).02. Disponível em: https://bryanhousepub.com/index.php/jpce/article/view/3229. Acesso em: 8 apr. 2026.