1. Short soundings at Tell Qalinj Agha (Erbil);Abu al-Soof;Sumer,1966
2. Excavations at Tell Qalinj Agha (Erbil);Abu al-Soof;Sumer,1969
3. Rapid small-scale separation of saturate, aromatic and polar components in petroleum;Bastow;Org. Geochem.,2007
4. The Oligocene Maikop series of Lahich (eastern Azerbaijan): paleoenvironment and oil–source rock correlation;Bechtel;Org. Geochem.,2014
5. Short notes on chalcolithic pottery research: the pottery sequences of Tell nader (Erbil) and ashur (Qal’at Sherqat);Beuger,2016