The Myth of Masada: How Reliable Was Josephus, Anyway?: "The only source we have for the story of Masada, and numerous other reported events from the time, is the Jewish historian Flavius Josephus, author of the book The Jewish War."
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Campbell, Duncan B. (1988). "Dating the Siege of Masada". Zeitschrift für Papyrologie und Epigraphik. 73 (1988): 156–158. JSTOR20186870.
Cotton, Hannah M. (1989). "The Date of the Fall of Masada: The Evidence of the Masada Papyri". Zeitschrift für Papyrologie und Epigraphik. 78 (1989): 157–162. JSTOR20187128.