Alinjavwa Simbeye and Pethias Siame (2025) “Challenges Faced by Teachers in Addressing Achievement Gaps of Students at Nyumba Yanga Secondary School in Zambia”, INTERNATIONAL JOURNAL OF SOCIAL SCIENCE & INTERDISCIPLINARY RESEARCH ISSN: 2277-3630 Impact factor: 8.036, 14(11), pp. 39–55. Available at: https://gejournal.net/index.php/IJSSIR/article/view/2767 (Accessed: 5 December 2025).