https://scholar.google.com/citations?hl=en&user=B-Z_8oAAAAAJ&scilu=&scisig=AM0yFCkAAAAAZWGuTdFCchTgXj3rBSOeuWoXLAw&gmla=AH70aAVl1thU3EZ5tba_l_17izGkCT2t-5MEjwwtfy3yoqsBk5lX_Wv3ezMOpWF09M3osPqpyO_ZlstmI--TyM2klTtTeNJzwiLDblELuDg&sciund=11697888430710376856
https://www.researchgate.net/profile/Haider-Atrah