ON PERFORMANCE OF SOME METHODS OF DETECTING NONLINEARITY IN STATIONARY AND NON-STATIONARY TIME SERIES DATA. FJST [انترنت]. 31 ديسمبر، 2016 [وثق 17 مايو، 2026];2(2):144-50. موجود في: https://lafiascijournals.org.ng/index.php/fjst/article/view/65