Bibliography
Bowers, N. L., Gerber, H. U., Hickman, J. C., Jones, D. A., & Nesbitt, C. J. Actuarial Mathematics (2nd ed.). Schaumburg, IL: Society of Actuaries, 1997.
Dickson, D. C. M., Hardy, M. R., & Waters, H. R. Actuarial Mathematics for Life Contingent Risks (3rd ed.). Cambridge: Cambridge University Press, 2020.
Jordan, C. W. Life Contingencies (2nd ed.). Chicago, IL: Society of Actuaries, 1967.