Text Books

David Halliday, R. R. (2015). Chapter 15 Oscillations. In Fundamentals of Physics Extended, 10th Edition (10th ed., Vol. 2, pp. 413-443). Wiley.

Internet

1. voyager.egglescliffe.org.uk/physics/gravitation/bifilar/bif.html
2. https://conservancy.umn.edu/bitstream/.../Habeck_UROP%20Final%20Report.pdf
3. level1.physics.dur.ac.uk/projects/script/bifilar.pdf

Java apps/apps

University of Colorado, B. (n.d.). Masses & Springs. Retrieved from PhET Interactive Simulations: https://phet.colorado.edu/en/simulation/mass-spring-labA

Videos

www.youtube.com/watch?v=deLaaXdpCRY(interesting student experiment).

Bibilography

Encyclopædia Britannica. (n.d.). Hooke's Law. Retrieved May 15, 2017, from Encyclopædia Britannica: https://www.britannica.com/science/Hookes-law

Fox, J. G., & Mahanty, J. (1970). The Effective Mass of an Oscillating Spring. American Journal of Physics, 38, 98-100. doi:10.1119/1.1976240