1. J C Bardhan and S C Sengupta, Resin Acids. Part I. Synthesis of phenanthrene hydrocarbons derived from d-pimaric acid and a new route to phenanthrene, J. Chem. Soc., pp.2520–2526, 1932.
2. Hundred years of Postdoctoral Teaching in Chemistry, Calcutta University.
3. S N Balasubrahmanyam, Life and chemical times of D K Basu, Resonance, pp.111–129, February 2013.
4. J C Bardhan and S C Sengupta, Resin Acids. Part II. Synthesis of 1- Methyl-7-isopropylphenanthrene (Retene), J.Chem. Soc., pp.2798–2800, 1932.
5. J E Bucher, The constitution of retene and its derivatives, J. Am. Chem. Soc., Vol.32, pp.374–382, 1910.