The spelling of Sara with an "h" is most likely a variation that has evolved over time or in different language regions. It could also be a personal preference or an attempt to differentiate it from the more common spelling of Sara without the "h."
Sara H. Banks has written: 'A net to catch time' -- subject(s): Fiction, Gullahs, Afro-Americans, Juvenile fiction
Sara Beevers has written: 'Sara Beevers'
Sara Gallardo has written: 'Paginas de Sara Gallardo' 'Eisejuaz'
Sara Robinson has written: 'Sounding out'
Sara Menaboni has written: 'Menaboni's birds'
Sara Chin has written: 'Below the line'
Sara Porter has written: 'Peter in process'
Sara Mills has written: 'Feminist readings'
Sara Jenkins has written: 'Images of man'
Sara Blayne has written: 'An Easter courtship'
Sara Fritzlar has written: 'The battle over deficits'
Sara Alexander has written: 'L' urgence d'aimer'