K., N. A., W. K. W.E., and A. R.B.2. “EFFECT OF EQUILIBRATION DURATION, VAPOUR TEMPERATURE AND EXPOSURE VAPOUR DURATION ON CRYOPRESERVED SPERM OF AFRICAN CATFISH”. Malaysian Journal of Science, vol. 31, no. 2, Dec. 2012, pp. 132-4, doi:10.22452/mjs.vol31no2.10.