Kebbie, Tamba. “Assessment of Candidates’ Educational Performance in Integrated Science at the Basic Education Certificate Examination (BECE), in Sierra Leone, 2005-2007, Implications for Stakeholders”. The International Journal of Science & Technoledge 6, no. 7 (July 31, 2018). Accessed June 29, 2024. http://internationaljournalcorner.com/index.php/theijst/article/view/131415.