| • ladder system | |
| सोपान: staircase stair grade episode rung steps stepping | |
| सिद्धांत: doctrine principle Maxim rule motto outlines | |
सोपान सिद्धांत अंग्रेज़ी में
[ sopan sidhamta ]
| • ladder system | |
| सोपान: staircase stair grade episode rung steps stepping | |
| सिद्धांत: doctrine principle Maxim rule motto outlines | |
