. Joseph, Eme U. (2012). Psycho-academic variables and mathematics achievement of the 9 th grade students in Nigeria. British Journal of Education, Society and Behavioural Science 2 (2), 61-74.
. Joseph, Eme U. (2012). Psycho-academic variables and mathematics achievement of the 9 th grade students in Nigeria. British Journal of Education, Society and Behavioural Science 2 (2), 61-74.