Biology By Khan Sir

मानव कोशिका | Human Cell | Biology | Khan GS Research Center Khan GS Research Centre 18,612,277 4 года назад
Human Blood | RBC | WBC | Platelets in Hindi Khan GS Research Centre 15,529,061 4 года назад
Digestive System | पाचन तंत्र | Khan GS Research Center | Patna Khan GS Research Centre 7,739,503 4 года назад
Human Skeleton | Bones | Cartilage | Skeleton System Khan GS Research Centre 19,864,135 4 года назад