1. Principales of paleoecology: An introduction to the study of how and where animals and plants lived in the past (p. 370);Ager,1963
2. The karst landscapes of Beni Mellal Atlas (Central Morocco): Identification for promoting geoconservation and tourism;Ait Barka;Quaestiones Geographicae,2022
3. A quantitative method for inventory and assessment of geoheritage in the Beni Mellal Atlas Mountains, Morocco;Ait Omar;Cinq Continents,2022
4. From selected geosites to geodiversity conservation: Polish example of modern framework;Alexandrowicz,1999