- Advanced Calculus: David V. Widde.
- Advanced Calculus, Third Edition: R. Creighton Buck.
- http://www.math.harvard.edu/~shlomo/docs/Advanced_Calculus.pdf.
- Advanced Calculus: David V. Widde.
- Advanced Calculus, Third Edition: R. Creighton Buck.
- http://www.math.harvard.edu/~shlomo/docs/Advanced_Calculus.pdf.