Samina Gul and Awais Iqbal 2026. IMPACT OF SCHOOL HEADS’ SUPERVISORY PRACTICES ON TEACHERS’ INSTRUCTIONAL PERFORMANCE: EVIDENCE FROM SECONDARY SCHOOLS IN DISTRICT BHAKKAR, PAKISTAN. JOURNAL OF SOCIAL SCIENCES DEVELOPMENT. 5, 3 (May 2026), 200–210. DOI:https://doi.org/10.59075/jssd.v5i3.389.