“The Impact of Examination-Oriented Private Tuitions on Learners’ Communicative Competence in English as a second language: A Case of Selected Public Schools of Livingstone District of Zambia”, KNUMJ, vol 1, 호 1, pp 69–78, 3 2023, 접근된: 11 04, 2026. Available at: https://accessjournal.nkrumah.edu.zm/index.php/knuj/article/view/15