Abidin, H.Z., Yolanda, O., Meilano, I., Kusuma, M., Muhardi, D., Setyadi, B., Kahar, J., Suganda, O., Sukhyar, R. and Tanaka, T. 2019. The Effects of Tropospheric Bias on Deformation Monitoring of MT. Guntur using GPS Survey Method. Journal of Mathematical and Fundamental Sciences. 30, 1 (Jan. 2019), 13-26.