David, I. O., S. O, A., A., E. and B. C. E., A. (2015) “Harmony-Disharmony Scale: Development and Initial Factorial Validation”, Covenant International journal of Psychology, 1(1). Available at: https://journals.covenantuniversity.edu.ng/index.php/cijp/article/view/179 (Accessed: 9 July 2024).