Chapter 38
Engineering Mathematics. By K. A. Stroud. 5th edition. Industrial press Inc. NY. 2001

38.1 Program 24. First order differential equations. Test excercise 24. page 1067
38.2 Program 24. First order differential equations. Further problems 24. page 1068
38.3 Program 25. Second order differential equations. Test Excercise 25. page 1093
38.4 Program 25. Second order differential equations. Further problems 25. page 1094