Ruqia, Adil M, Farooq Nawaz Khan, Quddoos A. 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]. 2024Mar.31 [cited 2024May17];4(1):1121-9. Available from: http://www.ijhs.com.pk/index.php/IJHS/article/view/434