00457nam a2200133Ia 4500 20251229175734.0 251229s9999 xx 000 0 und d TL 978 .O68 Omusonga, Robert Jere Effects of selected roofing materials on air navigation signal propagation Robert Jere Omusonga Egerton Njoro Egerton University Global Positioning Sysrems - Thesis/Dissertations THE 482264 482264 0 0 0 0 EGERTONLIB EGERTONLIB AFR 2025-12-29 0 TL 978 O68 072352 2025-12-29 17:57:34 2025-12-29 THE