Kaseke, Ndolo Francis, and Susan Macharia. “An Investigation of Concept Attainment Model on Learning Achievement in Biology in Public Secondary Schools in Kibwezi Sub-County, Kenya”. The International Journal of Business & Management 5, no. 8 (August 31, 2017). Accessed July 22, 2024. https://internationaljournalcorner.com/index.php/theijbm/article/view/124470.