Volume 30.2, Issue 60, January 1994, Pages 306-319
T.Y. ABD-EL-MOTELIB; S.S. EL-BALLAL; BAHY EL-GAMAL GALAL
Volume 30.1, Issue 59, October 1993, Pages 277-288
T.Y. ABD-EL-MOTELIB; BAHY EL-GAMAL GALAL
Volume 29.2, Issue 58, July 1993, Pages 270-276
T.Y. ABD-EL-MOTELIB; K. EL-ZANATY
Volume 29.1, Issue 57, April 1993, Pages 264-275
K. EL-ZANATY; T.Y. ABD-EL-MOTELIB
Volume 28.2, Issue 56, January 1993, Pages 297-307
T.Y. ABD-EL-MOTELIB
Volume 25.1, Issue 49, April 1991, Pages 241-249
T.Y. ABD-EL-MOTELIB; B. SALEM
Volume 24.2, Issue 48, January 1991, Pages 268-273
B. SALEM; T.Y. ABD-EL-MOTELIB
Volume 22.2, Issue 44, January 1990, Pages 192-197
A. NAFADY; T.Y. ABD-EL-MOTELIB; B. SALEM; K. EL-ZANATY