Partov 1998 Partov, Hassan (1998), Lake Hamoun, United Nations Environment Programme (UNEP): DEWA/GRID Europe, archived from the original on 2018-10-21, retrieved 2010-09-24
Partov 1998 Partov, Hassan (1998), Lake Hamoun, United Nations Environment Programme (UNEP): DEWA/GRID Europe, archived from the original on 2018-10-21, retrieved 2010-09-24