Use of audio-visual aids for the effective teaching of biology at secondary school level in public and private sectors of Peshawar district of Khyber Pakhtunkhwa. IJHS [Internet]. 2024 Mar. 31 [cited 2026 Sep. 24];4(1):1121-9. Available from: https://ijhs.com.pk/index.php/IJHS/article/view/434