Tipa, E. V. (1977). A Monte Carlo study of the two-sample Wilcoxon signed ranks test. University of the Philippines Library.
Chicago-referens (17:e uppl.)Tipa, Emerito Villegas. A Monte Carlo Study of the Two-sample Wilcoxon Signed Ranks Test. Quezon City: University of the Philippines Library, 1977.
MLA-referens (9:e uppl.)Tipa, Emerito Villegas. A Monte Carlo Study of the Two-sample Wilcoxon Signed Ranks Test. University of the Philippines Library, 1977.
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