| 000 | 00449nam a2200157Ia 4500 | ||
|---|---|---|---|
| 005 | 20251001134757.0 | ||
| 008 | 251001s9999 xx 000 0 und d | ||
| 041 | _aEnglish | ||
| 100 | _aDissanayake, D. A. | ||
| 245 | 2 | _aA Study of Students Disciplinary Problems in the Year 10 Class in School Colombo District | |
| 260 |
_aMaharagama : _c1993 |
||
| 300 | _a60p.; | ||
| 502 |
_cNIE _bPGDEM _d1993 |
||
| 650 | _aEducation Sociology | ||
| 942 | _cTH | ||
| 999 |
_c161630 _d161630 |
||