Kunathikom, S., P. Phophong, P. Potjanakorn, S. Koanantakul, R. Choavaratana, S. Suksompon, S. Julavijitphong, and S. Suppinyopong. “Hypo-osmotic Swelling Test and Sperm Motility after Swim-up and Two-layer Percoll Gradient Preparation of Frozen-Thawed Sperm”. Thai Journal of Obstetrics and Gynaecology, vol. 10, no. 1, Mar. 1998, pp. 47-51, https://he02.tci-thaijo.org/index.php/tjog/article/view/257116.