Baruah, S.K., and P.K. Baruah. “Studies of Nuclear Magnetic Resonance Spectra of Positive Halogen Salts of Pyridine and Substituted Pyridines”. Asian Journal of Chemistry 16, no. 2 (August 27, 2016): 688–694. Accessed November 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/14551.