rezaei arefi, mohsen, zangeneh asadi, mohammad ali, behniyafar, aboalfazl, javanbakht, Mohammad. “Evaluation and zoning of Karstic transformation using the hierarchical analysis method(AHP)  (Case study: Kalat mountainous basin, Razavi Khorasan).” Geography, vol. 18, no. 64, 2020, pp. 79-94.