| 000 | 00345nam a2200121Ia 4500 | ||
|---|---|---|---|
| 001 | MPKV057482 | ||
| 008 | 120911s9999 xx 000 0 und d | ||
| 082 | _a500 | ||
| 245 |
_aJournal of Higher Education Vol.1 No.1-2 _c; |
||
| 246 | _aJournal of Higher Education Vol.1 No.1-2 | ||
| 260 |
_aEgypt _bAssiut university _c1975 |
||
| 650 | _aPure Science | ||
| 999 |
_c55475 _d55475 |
||