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2. Omusonga, R. J. (2015). Impact of choice of roofing materials on navaids wave polarization. Innovative Systems Design and Engineering Vol. 6 No.5 pp. 104 113, May 2015. International Institute of Science Technology and Engineering.
3. Omusonga, R. J. (2015). Comparison of effects of various roofing materials on navaids transmission distance. International Journal of Engineering and Advanced Technology Studies Vol. 3 No. 2 pp. 1 16, June 2015. European Centre for Research and Development.
4. Omusonga, R. J., Nyaanga, D. M., Githeko, J. M. & Chomba, B. K. (2015). Effects of selected roofing materials on air navigation signal strength. Kabarak University 5Th Annual International Conference. Symposium S2015-A, 14th - 17th July 2015. Kabarak University, Nakuru Kenya. http://eserver.kabarak.ac.ke:8082/ocs/index.php/conf05/conf05/paper/view/309
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