Volume 35, Issue 2, April 2018, Pages 501-514
T. Attafy; A. M. Mousa
Volume 35, Issue 1, January 2018, Pages 105-124
T. M. Attafy; A. M. Elsbaay
Volume 34, Issue 1, January 2017, Pages 157-180
T. M. Attafy; W. F. EL Metwally; A. M. Okasha