Abidin, H. Z.; Andreas, H.; Gamal, M.; Sugandar, O. K.; Meilano, I.; Hendrasto, M.; Kusuma, M. A.; Darmawan, D.; Purbawinata, M. A.; Wirakusumah, A. D.; Kimata, F. Ground Deformation During Papandayan Volcano 2002 Eruption As Detected by GPS Surveys. J. Eng. Technol. Sci. 2013, 35, 47-60.