Guérin (1869), pp. 316–319. As Josephus puts 70 stadia distance between Beit-Zachariah and Beit-Sur, Guérin writes on page 318 (translated from the French): "Seventy stadia is almost thirteen kilometers from that which separates Beit-Zakaria from Beit-Sour (Beth-Tsour). But we know, from many other passages, that we should not ask Josephus for mathematical precision in terms of figures, and the interval he indicates between Beth Zacharias and the citadel of Bethsura (Beth-Tsour) is sufficiently accurate to allow us to conclude that the first of these two points cannot be placed anywhere other than the present village of Beit-Zakaria" (End Quote)
Guérin (1869), p. 333. Original French: "Quant à Azéca, en hébreu A’zekah, elle n’a pas encore été retrouvée d’une manière certaine, ce nom paraissant avoir disparu."
Theodosius (1882), p. 17 (note 17). Cf. Klein (1915:168) who wrote: "The fact that the name Ṣaidan (ציידן) is not preceded by the word 'Beth' (בית) presents no difficulty in explaining the two names as being identical, since similar things are more common among Galilean names (e.g. Maon and Meron; Beth-Maon and Beth-Meron)." Similarly, Vilnay (1954:131) wrote concerning the word "Beit" prefixed to place names: "The name Beth-Geres –– Geres, recalls the biblical names: Beth-Nimrah –– Nimrah; Beth-Azmoth –– Azmoth; Beth-Gilgal –– Gilgal; Beth-Lebaoth –– Lebaoth, etc. These two forms of the same name are also found in talmudic literature: Beth-Haifa –– Haifa, Beth-Moron –– Meron, Beth-Maon –– Maon, etc." Romanoff (1935-1936:156 (note 7), writes similarly: "The term בית [= Beit] was also equivalent to כפר [= Kefar]: e.g. Beit Shearim = Kefar Shearim, etc."
Epiphanius (1935), s.v. Concerning Names of Places, section no. 64Quote: "But it is now called in Syriac Hewarta, for the reading Azekah is Hebrew; and it is translated into Greek as "white."".
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Aharoni, Y. (1979). The Land of the Bible: A Historical Geography (2 ed.). Philadelphia: Westminster Press. p. 431. ISBN0664242669. OCLC6250553. (original Hebrew edition: 'Land of Israel in Biblical Times - Historical Geography', Bialik Institute, Jerusalem (1962))