"LIGHTNING PROTECTIVE SYSTEM: SIZING OF INTERCEPTION, DOWN CONDUCTOR AND EARTHING NETWORKS ON NIGERIAN 11-132 KV SUBSTATIONS". FULafia Journal of Science and Technology 7, no. 1 (مارس 31, 2021): 35–41. تاريخ الوصول يونيو 8, 2026. https://lafiascijournals.org.ng/index.php/fjst/article/view/154.