About SHAWALI A S
About Univ. Cairo
About ABDELHAMID A O
About Univ. Cairo
About HASSANEEN H M
About Univ. Cairo
About PARKANYI C
About Univ. Texas at El Paso
About Phosphorus and Sulfur and the Related Elements
About phosphonium
About acetophenones
About Organop phosphorus compounds
About Acid-base equilibrium
About アリ
About 酸性度
About 反応性