Pascal Mutombo, and Crispin Muleba. “Imprecision in the Questions Formulated by the Chemistry Teachers of the Kamina I Subdivision and Their Impact on the Performance of Students in the Science Section”. IJRDO- Journal of Educational Research 10, no. 2 (July 8, 2024): 45-49. Accessed December 7, 2025. http://13.234.104.160/index.php/er/article/view/6111.