Abidin, Hasanuddin Z., O. Yolanda, I. Meilano, M.A. Kusuma, D. Muhardi, B. Setyadi, J. Kahar, O.K. Suganda, R. Sukhyar, and T. Tanaka. 2019. “The Effects of Tropospheric Bias on Deformation Monitoring of MT. Guntur Using GPS Survey Method”. Journal of Mathematical and Fundamental Sciences 30 (1):13-26. https://journals.itb.ac.id/index.php/jmfs/article/view/9424.