00304nam 2200353 4500001000400000003002300004005000900027008004100036100004400077260004400121245003100165353StarLibrary Marc Built20180405201711 ||||| |||||||||||amh  aGomeel Abdulaziz &Abdul Rashid Zumailan bعدن: دار جامعة عدن c1999 asolved problems in physics