Puswanto, E., 		Raharjo, P., 		Wardhani, F., & 		Al ‘Afif, M.
(2020).
Study of the Wadas Malang Hot Spring as Non-Volcanic Geothermal Potential, Kebumen Central Java.
International Conference on Regional Development, 1(1), 92-96.
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https://proceedings.undip.ac.id/index.php/icrd/article/view/183