Nurkholis, A., Adji, T.N., Haryono, E., Cahyadi, A. and Suprayogi, S. 2019. Time series analysis application for karst aquifer characterisation in Pindul Cave karst system, Indonesia. Acta Carsologica. 48, 1 (Mar. 2019). DOI:https://doi.org/10.3986/ac.v48i1.6745.