Atkins, P. W., De Paula, J., & Keeler, J. (2023). Atkins’ Physical chemistry (Twelfth edition). Oxford University Press.
Hollas, J. M. & MyiLibrary. (2004). Modern spectroscopy (4th ed). John Wiley & Sons. https://ebookcentral.proquest.com/lib/nottingham/detail.action?docID=219771