Spatial Analysis of Drought Index in Kampar Watershed Riau Province. Jurnal Infrastruktur , [S. l.], v. 5, n. 2, p. 69–77, 2019. DOI: 10.35814/infrastruktur.v5i2.1010. Disponível em: https://journal.univpancasila.ac.id/index.php/infrastruktur/article/view/1010. Acesso em: 29 sep. 2026.