Burger, H. R., 1992, Exploration geophysics of shallow subsurface, prentice- hall, Eaglewood Cliffs, NJ, 489.
Cardarelli, E., Cercato, M., Cerreto, A. and Di Filippo, G., 2010, Electrical resistivity and seismic refraction tomography to detect buried cavities, Geophys. Prospect., 58(4), 685-695.
Corvallis, O. R., 2000, D.C. resistivity methods, Northwest Geophysical Associates. Inc.
Grandjean, G., 2006, Imaging subsurface objects by seismic P-wave tomography: Numerical and experimental validation, Near Surface, Geophysics, 4, 279-287.
Hickey, C. J., Schmitt, D. J., Sabatier, J. M. and Riddle, G., 2009, Seismic measurements for detecting underground high- contrast voids, In Proc. of Symposium on Applications of Geophysics to Environmental and Engineering Problems, May 30, 929-936.
Lankston, R. W., 1989, The seismic refraction method: a viable tool for mapping shallow targets into the 1990s, J. Geophys., 54, 1535-1542.
Leucci, G., Greco, F., De Giorgi, L. and Mauceri, R., 2007, Three-dimensional image of seismic refraction tomography and electrical resistivity tomography survey in the castle of Occhiola (Sicily, Italy), J. Archaeol. Sci., 34, 233-242.
Keary, P., Brooks, M. and Hill, I., 2005, An introduction to geophysical exploration, Blackwell Science, Berlin, Germany.
Keller, G. V. and Frischknecht, F. C., 1966, Electrical methods in geophysical prospecting, London: Pergamon.
Loke, M. H., 1999, Rapid 2-D resistivity and IP inversion using the least squares method, Software manual.
Loke, M. H., 2000, Electrical imaging surveys for environmental and engineering studies, A practical guide to 2-D and 3-D Surveys, available from http://www.terraplus.com
Loke, M. H., 2004, Tutorial: 2-D and 3-D electrical imaging surveys, available from http://www.geoelectrical.com
Loke, M. H. and Barker, R.D., 1995, Least-squares deconvolution of apparent resistivity pseduosections, J. Geophys., 60, 1682-1690.
Loke, M. H. and Barker, R. D., 1996, Rapid least-square inverson of apparent resistivity pseudosections using a Quasi-Newton method, Geophys. Prospect., 44, 131-152.
McDonald, R. and Davies, R., 2003, Detection of sinkholes using 2D electrical resistivity imaging, First Break, 21, 32-35.
Madanchi Zare, A., Dehghani, H., Mousa Zade, K. and Taghavi, S., 2013, Modelling the ability of geophysics sensors for underground utility detection and some solutions to disable them, Passive Defence Journal, 16, 63-76 (In Persian).
Meju, M., 1994, Geophysical data analysis: understanding inverse problem theory and practice, Society of Exploration Geophysicsts, United State of America.
Mikhail, Z. S., 1994, The geoelectrical methods in geophysical exploration, Elsevier.
Pullammanappallil, S. K. and Louie, J. N., 1994, A Generalized simulated-annealing optimization for inversion of first- arrival times, Bulletin of the Seismological Society of America, 84(5), 1397-1409.
Sabatier, J. M. and Muir, T. G., 2006, Workshop on real-time detection of candestine shallow tunnels, NCPA report HB0306-01 for US
Army Research Office, University of Mississippi.
Samouelian, A., Cousin, I., Tabbagh, A., Bruand, A. and Richard, G., 2005, Electrical resistivity survey in soil science: a review: soil and tillage research, Elsevier.
Stolarczyka, L. G., Troublefield, R. and Battis, J., 2005, Detection of underground tunnels with a synchronized electromagnetic wave gradiometer, In Proc. of Sensors and C3I Technologies for Homeland Security and Defense, 5778.
Shin, C. H., 1999, Refraction tomography parameterization, J. Seism. Explor., 8, 143-156.