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pavan kumar sake from amaravathi

ALLTECHSCIENCE

alltechscience.com
Pavan Kumar Sake, Amaravathi



Amiya Sarkar from Calcutta

Physiology physics woven fine

physiology-physics.blogspot.com
Amiya Sarkar, Calcutta


Raj Madhu from Visakhapatnam

Physics Cloud

physicscloud.blogspot.in
Raj Madhu, Visakhapatnam