Algül, G. Ç. Et Al. Drills from Çayönü: A Combination of Ethnographic, Experimental and Use-Wear Analysis. 2001. In Beyond Tools. Redefining the PPN Lithic Assemblages of the Levant , Ex oriente, Berlin, 137-143.

Algül, G. Ç., Coşkunsu, G., Dede, Y., Iovino, M. R., Lemorini, C., & Erim Özdoğan, F. A., (2001). Drills from Çayönü: A Combination of Ethnographic, Experimental and Use-Wear Analysis. Beyond Tools. Redefining the PPN Lithic Assemblages of the Levant (pp.137-143), Berlin: Ex oriente.

Algül, Gülsün Et Al. "Drills from Çayönü: A Combination of Ethnographic, Experimental and Use-Wear Analysis." In Beyond Tools. Redefining the PPN Lithic Assemblages of the Levant , 137-143. Berlin: Ex oriente, 2001

Algül, Gülsün Ç. Et Al. "Drills from Çayönü: A Combination of Ethnographic, Experimental and Use-Wear Analysis." Beyond Tools. Redefining the PPN Lithic Assemblages of the Levant , Ex oriente, 2001, pp.137-143.

Algül, G. Ç. Et Al. (2001) "Drills from Çayönü: A Combination of Ethnographic, Experimental and Use-Wear Analysis", Beyond Tools. Redefining the PPN Lithic Assemblages of the Levant . Berlin: Ex oriente.

@bookchapter{bookchapter, author ={Gülsün Çiler ALGÜL Et Al. }, chaptertitle={Drills from Çayönü: A Combination of Ethnographic, Experimental and Use-Wear Analysis}, booktitle={ Beyond Tools. Redefining the PPN Lithic Assemblages of the Levant}, publisher={Ex oriente}, city={Berlin},year={2001} }