Srirungruang, C. , Pongchairerk, U. , Sirinarumitr, K. and Chantakru, .S. 2012. Effect of Solid Surface Vitrifi cation on Viability and Morphology of Canine Cumulus-Oocyte Complex. Agriculture and Natural Resources. 46, 4 (Aug. 2012), 554–564.