https://digital.library.yale.edu/catalog/16986899
Secreta secretorum - Yale University Library
Aristotle, pseud; "M.CCCC.lxxxuij" (1484 or 1487).
yale universitysecretalibrary
https://la.wikipedia.org/wiki/Liber_secretorum_fidelium_Crucis
Liber secretorum fidelium Crucis - Vicipaedia
liberfideliumcrucisvicipaedia
https://collections.library.yale.edu/catalog/16371220
Secretum secretorum - Yale University Library
yale universitysecretumlibrary