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 . INTERNATIONAL JOURNAL OF HUMAN AND SOCIETY, v. 4, n. 1, p. 1121-1129, 31 Mar. 2024.