Putra, D. P. E., & Baier, K. (2009). The Effect of Uncontrolled Urbanization in Regard to the Availability of Groundwater Demonstrated with the Example of the Indonesian Million City Yogyakarta.

Putra, Doni Prakasa Eka, و Klaus Baier. The Effect of Uncontrolled Urbanization in Regard to the Availability of Groundwater Demonstrated With the Example of the Indonesian Million City Yogyakarta. 2009.

Putra, Doni Prakasa Eka, و Klaus Baier. The Effect of Uncontrolled Urbanization in Regard to the Availability of Groundwater Demonstrated With the Example of the Indonesian Million City Yogyakarta. 2009.