Mary Wanderi, Samuel Waweru. Teacher -related barriers to effective utilization of science-teaching and learning resources in secondary schools in Kiambu County, Kenya. . IJEMA [Internet]. 2018 Dec. 31 [cited 2026 May 4];2(XII):34-4. Available from: https://www.demo.focusjournals.org/index.php/IJEMA/article/view/25