AL-Najjar, Sumeya G., and Muhammad M-R Fakhrildin. “Preparation of Human Spermatozoa Using Glass Wool Filtration Technique Versus Centrifugation Swim-Up Technique for Asthenozoospermia”. Iraqi Journal of Embryos and Infertility Researches, vol. 4, no. 2, Dec. 2014, pp. 25-31, https://doi.org/nan.