Wan Nik, Wan Suraya binti, and Wan Zuraidah binti Wan Nik. “Perceptions of Selected Heterogeneous Primary School Heads Toward Continuous Quality Improvement (CQI) in the School Strategic Planning (SSP)”. International Journal of Social Sciences and Humanities Invention 4, no. 12 (December 20, 2017): 4216–4210. Accessed November 26, 2024. https://valleyinternational.net/index.php/theijsshi/article/view/1005.