| • concept of energy | |
| ऊर्जा: energy electricity power life elan bombarding | |
| संकल्पना: concept conceptualisation conceptualization | |
ऊर्जा संकल्पना अंग्रेज़ी में
[ urja samkalpana ]
| • concept of energy | |
| ऊर्जा: energy electricity power life elan bombarding | |
| संकल्पना: concept conceptualisation conceptualization | |
