For the problems and different approaches, see C. De Wit, The Date and Route of the Exodus (London: Tyndale, 1960); L. T. Wood, “The Date of the Exodus,” in New Perspectives on the Old Testament, ed. J. B. Wane (Waco, TX: Word Books, 1970), pp. 66–87; B.K. Waltke, “Palestinian Artifactual Evidence Supporting the Early Date for the Exodus,” Bibliotheca Sacra 129 (1972), pp. 33–47; John J. Bimson, Redating the Exodus and Conquest, JSOT Supplement Series 5 (Leiden: Brill, 1978).