@ARTICLE{Hassan_Qasim_Why_vol., author={Hassan, Qasim}, journal={Folia Orientalia}, howpublished={online}, year={vol. LIII}, publisher={Commission of Oriental Studies of the Polish Academy of Sciences – Kraków Branch}, title={Why Mama and Papa? The Acquisition of the Parental Terms in Two Unrelated Language Communities}, URL={http://journals.pan.pl/Content/100583/PDF-MASTER/FoliaOrientalia%2053-16%208Hassan.pdf}, }