Haryono, E., Danardono, D., Mulatsih, S., Putro, S.T. and Adji, T.N. 2016. The Nature of Carbon Flux in Gunungsewu Karst, Java-Indonesia. Acta Carsologica. 45, 2 (Nov. 2016). DOI:https://doi.org/10.3986/ac.v45i2.4541.