G. Ravikuppan, S. Arunkumar, and P. Thanikachalam, “Calcium ionophore A23187 versus progesterone: induction of acrosome reaction in thawed and prepared cryopreserved semen samples”, Int J Reprod Contracept Obstet Gynecol, vol. 15, no. 1, pp. 110–115, Dec. 2025.