MUHABAT KHAN; GHULAM ALI. The Effect of Co-Curricular Activities on the Learning Outcomes of Secondary School Students in District East Of Karachi, Pakistan. The Shield - Research Journal of Physical Education & Sports Science, [S. l.], v. 13, 2020. DOI: 10.57038/theshield.v13i0.357. Disponível em: https://sujo.usindh.edu.pk/index.php/THE-SHIELD/article/view/357. Acesso em: 27 aug. 2026.