“Characteristics of Drought Variation in Winter Using Drought Indices During the Period 1971-2010 : A Case Study of Khyber Pakhtunkhwa (Pakistan)”. MAUSAM 67, no. 3 (July 1, 2016): 697–708. Accessed December 23, 2025. https://mausamjournal.imd.gov.in/index.php/MAUSAM/article/view/1390.