Wan Nur Syahidah Wan Yusoff A new covariance structure stability test based on vector-variance / Wan Nur Syahidah Wan Yusoff - Skudai, Johor : Universiti Teknologi Malaysia, 2013 - xv, 177 p. : ill. ; 30 cm. Thesis (PhD in Mathematics) -- Universiti Teknologi Malaysia - 2013 Bibliography : p. 159-164 ISBN: THE0002019(Local) Subjects--Topical Terms: Multivariate analysis