[Lorscheid, T., 2013. Anleitung zur Erstellung einer geologischen Karte mit QGIS 2.0, available at: https://www.steinmann.uni-bonn.de/studium-geowissenschaften/outdoor/nachbereitung/protokoll/gesamtanleitung-qgis-2.pdf (accessed 23 October 2018).]Search in Google Scholar
[Mohsen Alshaghdari, 2017. Geological mapping using open source QGIS, available at: https://www.research-gate.net/publication/320163676_Geological_mapping_using_open_source_QGIS (accessed 23 October 2018).]Search in Google Scholar
[QGIS Development Team, 2018. QGIS Geographic Information System, available at: https://www.qgis.org/en/site/ (accessed 23 October 2018).]Search in Google Scholar
