1. BARHAM, N. 1984: Summer recreation trips in Jordan (in Arabic, in print).
2. DEPARTMENT OF STATISTICS (H.K. of Jordan): Statistical Yearbook No. 34, Amman.
3. DEPARTMENT OF STATISTICS 1982: Housing and Population Census 1979-Summary results for localities in the East Bank. Amman.
4. MAIER, J; STEINECKE, A.; RUPPERT, K. and SCHAFFER, F. 1977: Sozialgeographie; Das geographische Seminar. Westermann, Braunschweig.