Emmanuel Odit, John Bismarck Okumu, Wilfred Lajul, George Opio and Denis Omara. External Factors and Teacher Effectiveness in Enhancing Learners’ Academic Achievement of Government-Aided Secondary Schools in Lira District, Uganda. PLLER-V4 [Internet]. 2024 Jan. 22 [cited 2026 Jun. 4];:164-76. Available from: https://stm.bookpi.org/PLLER-V4/article/view/13169