Gupta, S., R. Yadav, and M. Thakur. “In-Vitro Sperm Immobilization Activity and Biocompatibility Study of NVD Terpolymer”. International Journal of Basic & Clinical Pharmacology, vol. 6, no. 5, Apr. 2017, pp. 1221-6, doi:10.18203/2319-2003.ijbcp20171680.