http://en.wikipedia.org/wiki/Oscillation [2]
http://www.animations.physics.unsw.edu.au/jw/oscillations.htm [3]
https://www.khanacademy.org/science/physics/oscillatory-motion [4]
http://www.circuitstoday.com/types-of-oscillations [5]
http://physics.mq.edu.au/~terry/bridge/BRIDGE11.pdf [6]
http://ww2.odu.edu/~jdudek/Phys111N_materials/8_oscillations_waves.pdf [7]
http://youthrokzz.weebly.com/uploads/6/7/2/9/6729243/waves_and_oscillati... [8]
Links
[1] https://hootsgo.org/?q=node/6387
[2] http://en.wikipedia.org/wiki/Oscillation
[3] http://www.animations.physics.unsw.edu.au/jw/oscillations.htm
[4] https://www.khanacademy.org/science/physics/oscillatory-motion
[5] http://www.circuitstoday.com/types-of-oscillations
[6] http://physics.mq.edu.au/~terry/bridge/BRIDGE11.pdf
[7] http://ww2.odu.edu/~jdudek/Phys111N_materials/8_oscillations_waves.pdf
[8] http://youthrokzz.weebly.com/uploads/6/7/2/9/6729243/waves_and_oscillations.pdf