Ijaz, Nouman, MD NAZMUl HASSAN, SANA ULLAH JAN, and INSOO KOO. “Enhancing Urban Sound Classification With CNN-Transformer Hybrid Model and Spectrogram Augmentation”. Sindh University Research Journal - SURJ (Science Series) 57, no. 02 (December 30, 2025): 39–46. Accessed April 4, 2026. https://sujo.usindh.edu.pk/index.php/SURJ/article/view/7708.