| Artist | : | Chemical Calculations | 9th Class Chem | 1st Chap | Lecture # 21 |
| Title | : | Interesting Chemistry |
| Duration | : | 1348 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |
| Artist | : | Chemical Calculations | 9th Class Chem | 1st Chap | Lecture # 21 |
| Title | : | Interesting Chemistry |
| Duration | : | 1348 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |