| Leader | | | 00252naa##2200133uu#4500 |
| 001 | | | j00001348 |
| 003 | | | PNU |
| 005 | | | 20090128100254 |
| 008 | | | 100517s th 000 0 tha d |
| 099 | | | \aบทความ |
| 100 | | | \aS. Khongpugdee. |
| 245 | 0 | 0 | \aA study of conceptual understanding in basic astronomy of grade 9 and 10 students in rural areas of Thailand / \cS. Khongpugdee (และคณะ). |
| 773 | | | \tThai Journal of Physics.\gSeries 4. |
| 999 | | | \akolsmat |