Sanjeev Rathore* , Tanuj K. Joshi, M. G. H. Zaidi**; A. K. Rai. Photoacoustic Evaluation of Supercritically Synthesized Polyacrylic Acid Graft Polybisphenol- A- Carbonate. J. Int. Acad. Phys. Sci. 2004, 8, 63-67.