DR. MUHAMMAD ZEESHAN; NARGIS PARVEEN; HAJIRA BIBI. IMPACT OF PROFESSIONAL DEVELOPMENT ON INSTRUCTIONAL QUALITY AMONG SECONDARY SCHOOL TEACHERS: THE MEDIATING ROLE OF EFFECTIVE TEACHING PRACTICES AND THE LEARNING ENVIRONMENT. JOURNAL OF SOCIAL SCIENCES DEVELOPMENT, [S. l.], v. 5, n. 4, p. 19–43, 2026. DOI: 10.59075/jssd.v5i4.249. Disponível em: https://jssd.org.pk/index.php/jssd/article/view/249. Acesso em: 17 sep. 2026.