AMS Fasc. IV Nile Valley, 4th Catract etc. NE-36-A to NE-36-H / former 45-A to 45-H : SFDAS/R.I./3.395, 10 janvier 1999, DONGOLA: NE-36-A, listing SARS sites, Welsby: AMS numbering, The Northern Dongola Reach Survey. - Hinkel, Friedrich W.