This channel contain all topics of class 9 physics, chemistry and maths <br />Facebook link<br />https://www.facebook.com/profile.php?id=100042836946833<br />You tube link<br />https://www.youtube.com/channel/UC7UfLbZoXr1Ri3A4MVv0NSQ<br />Websit I'd - bakti6.blogspot.com
