楊平政Koehler, K. L.K. L.KoehlerBeran, G. W.G. W.BeranYang, P. C.P. C.Yang2009-02-132018-07-092009-02-132018-07-091991http://ntur.lib.ntu.edu.tw//handle/246246/132148en-USState Pseudorabies Eradication Indices Generated by Factor Analysisconference paper