KHAN, S.; ASHRAF, M.; KHAN, S. K. Assessment of drought occurrences in Zhob District using Standardized Precipitation Index from 1981-2018. Journal of Geography and Social Sciences (JGSS), [S. l.], v. 2, n. 2, p. 110–121, 2020. Disponível em: http://jgssjournal.uob.edu.pk/journal/index.php/jgss/article/view/13. Acesso em: 13 apr. 2024.