REFERENCES
- Boyce, W. and R. DiPrima. 2008. Elementary Differential Equations. New York: Wiley.
- Giménez, M., I. Salinas, J. Monsoriu, and J. C. Castro-Palacio. 2017. Direct visualization of mechanical beats by means of an oscillating smartphone. The Physics Teacher. 55(7): 424.
- Langtangen, H. and G. Pedersen. 2016. Scaling of Differential Equations. Berlin, Germany: Springer.
- Moore, L. 2007. ODES. https://www.maa.org/publications/periodicals/loci/ordinary-differential-equations-80. Accessed 7 April 2018.
- Neumann, E. 2001. myPhysicsLab.com. https://www.myphysicslab.com/springs/single-spring-en.html. Accessed 7 April 2018.
- Penney, C. H. and D. Penney. 2003. Elementary Differential Equations with Boundary Value Problems. Boston, MA: Prentice Hall.
- Peterson, G. and J. Sochacki. 2001. Linear Algebra and Differential Equations. Boston, MA: Pearson.
- Sochacki, J., R. Thelwell, and A. Tongen. 2018. Forced mass spring systems Maple worksheet. http://educ.jmu.edu/sochacjs/ForcedMassSpringSystems/. Accessed 7 April 2018.
- Taylor, J. 2005. Classical Mechanics. Herndon, VA: University Science Books.
- Thornton, S. and J. Marion. 2004. Classical Dynamics of Particles and Systems. Boston, MA: Brooks–Cole.
- West, B., S. Strogatz, J. McDill, et al. 2006. Interactive differential equations. https://media.pearsoncmg.com/aw/ide/index.html. Accessed 7 April 2018.
- Winkel, B. 2013. SIMIODE. https://www.simiode.org/. Accessed 7 April 2018.