mehrir, zakaria, assia lafhel, and abdelemajid sami. “Natural Heritage Is a Pillar for the Development and Diversification of the Tourism Product in Khenifra Province –Morocco ”. Journal of Science and Knowledge Horizons, Vol. 2, no. 01, June 2022, pp. 220-4, doi:10.34118/jskp.v2i01.2118.