A complete course. Another book that would be worth reading all the way through at some point in your studies.
Johnson, Keith. Acoustic and Auditory Phonetics / Keith Johnson. Third edition. Malden, MA: Wiley-Blackwell, 2012.
ebook available from the University library
Johnson (Phonetics) - Chapter 6.1 - Tube models of vowel production
Deriving the resonances and formant structures of vowels using 2 and 3 tube models of the vocal tract.
Johnson (Phonetics) - Chapter 2 - The Acoustic Theory of Speech Production: Deriving Schwa
Derives the acoustic features of the vocal tract in terms of the source-filter model
