1. Vogel, A. I. (1989). Textbook of Practical Organic Chemistry, 5th ed. ELBS: London, 946 p.
2. Chauhan, M. L. (2006). “Synthesis and Study of Mesogenic Material,” PhD. thesis, Saurastra University, Rajkot, Gujarat, India.
3. Gray, G. W. & Winsor, P. A. (1974). Influence of Composition and Structure on the Liquid Crystals Formed by Non-Amphiphilic Systems. In: Liquid Crystals and Plastic Crystals, Vol. 1, G. W. Gray (ed.). Ellis Harwood: Chichester, UK, Chapter 4, pp. 103–152.