"Sclerocephalus arabicus". teline.fr - Plant Biodiversity of South-Western Morocco (بالإنجليزية). Archived from the original on 2019-04-22. Retrieved 2019-01-31.
"Sclerocephalus arabicus". teline.fr - Plant Biodiversity of South-Western Morocco (بالإنجليزية). Archived from the original on 2019-04-22. Retrieved 2019-01-31.