ALAM, Md Juber and MAJUMDER, Arijit. The Statistical analysis of rainfall trend and its variability (1901–2020) in Kolkata, India. Bulletin of Geography. Physical Geography Series. Online. 26 September 2022. No. 23, pp. 5-16. [Accessed 2 January 2025]. DOI 10.12775/bgeo-2022-0006.