Parimala, P. Azantha, R. Madivanane, A. Tinabaye, and V. Pouchaname. 2016. “Comparative Ab Initio Investigation of Some Nitrogen Containing Heterocyclic Compounds Using DFT Calculation”. Asian Journal of Chemistry 28 (5):971-80. https://doi.org/10.14233/ajchem.2016.19550.