1. Asrat A, Demissie M, Mogessie A (2008) Geotourism in Ethiopia. Shama Books, Addis Ababa
2. Bruschi VM, Coratza P (2018) Geoheritage and environmental impact assessment (EIA). In: Reynard E, Brilha J (eds) Geoheritage: assessment, protection, and management. Elsevier, Amsterdam, pp 251–262
3. Coratza P, Gauci R, Schembri J, Soldati M, Tonelli C (2016) Bridging natural and cultural values of sites with outstanding scenery: evidence from Gozo. Maltese Islands Geoheritage 8:91–103
4. Gordon JE, Crofts R, Díaz-Martínez E (2018) Geoheritage conservation and environmental policies: retrospect and prospect. In: Reynard E, Brilha J (eds) Geoheritage: assessment, protection, and management. Elsevier, Amsterdam, pp 231–229
5. Gray M (2013) Geodiversity: valuing and conserving abiotic nature, second edn. Wiley Blackwell, Chichester