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    • Ekosistem Gua Karst dan Peranannya sebagai Habitat Burung Walet 

      Zuhud, Ervizal A. M. | Ontaryo, Yoyo | Wardana, Dadang (2010)
      A cave is a natural phenomenon, formed by the processes of corrosion and erosion which lasted hundreds of years. Because of its unique physical and biotic conditions, a cave is an interesting ecosystem which energy and ...